[CmdPal][AOT] Make fileSearch ext become AOT compatible (#39732)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
* Use source generation to replace some csWin32 function call.
* Clean up some AOT compatible issues.

<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist

- [x] **Closes:** #39889
- [x] **Communication:** I've discussed this with core contributors
already. If work hasn't been agreed, this work might be rejected
- [x] **Tests:** Added/updated and all pass
- [x] **Localization:** All end user facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

<!-- Provide a more detailed description of the PR, other things fixed
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

If you want to try it out, please see
https://github.com/microsoft/PowerToys/pull/39605

---------

Co-authored-by: Yu Leng <yuleng@microsoft.com>

.github/actions/spell-check/expect.txt

@@ -1996,3 +1996,14 @@ Evercoder
 LCh
 CIELCh
 CLSCTXINPROCALL
+IIDI
+irow
+lcid
+OTHERUNZOOM
+OTHERZOOM
+PARENTCLOSING
+PARENTOPENING
+ppwsz
+rguid
+SCROLLCHILDREN
+VARTYPE

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Commands/OpenPropertiesCommand.cs

@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using ManagedCommon;
 using Microsoft.CmdPal.Ext.Indexer.Data;
@@ -13,6 +14,7 @@ using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.UI.Shell;
 using Windows.Win32.UI.WindowsAndMessaging;
+using static Microsoft.CmdPal.Ext.Indexer.Native.NativeMethods;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Commands;
 
@@ -27,19 +29,16 @@ internal sealed partial class OpenPropertiesCommand : InvokableCommand
 
         try
         {
-            var filenamePCWSTR = new PCWSTR((char*)filenamePtr);
-            var propertiesPCWSTR = new PCWSTR((char*)propertiesPtr);
-
             var info = new SHELLEXECUTEINFOW
             {
-                cbSize = (uint)Marshal.SizeOf<SHELLEXECUTEINFOW>(),
+                cbSize = (uint)sizeof(SHELLEXECUTEINFOW),
-                lpVerb = propertiesPCWSTR,
+                lpVerb = propertiesPtr,
-                lpFile = filenamePCWSTR,
+                lpFile = filenamePtr,
                 nShow = (int)SHOW_WINDOW_CMD.SW_SHOW,
                 fMask = NativeHelpers.SEEMASKINVOKEIDLIST,
             };
 
-            return PInvoke.ShellExecuteEx(ref info);
+            return ShellExecuteEx(ref info);
         }
         finally
         {

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Commands/OpenWithCommand.cs

@@ -2,6 +2,8 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using Microsoft.CmdPal.Ext.Indexer.Data;
 using Microsoft.CmdPal.Ext.Indexer.Native;
@@ -11,6 +13,7 @@ using Windows.Win32;
 using Windows.Win32.Foundation;
 using Windows.Win32.UI.Shell;
 using Windows.Win32.UI.WindowsAndMessaging;
+using static Microsoft.CmdPal.Ext.Indexer.Native.NativeMethods;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Commands;
 
@@ -25,19 +28,16 @@ internal sealed partial class OpenWithCommand : InvokableCommand
 
         try
         {
-            var filenamePCWSTR = new PCWSTR((char*)filenamePtr);
-            var verbPCWSTR = new PCWSTR((char*)verbPtr);
-
             var info = new SHELLEXECUTEINFOW
             {
-                cbSize = (uint)Marshal.SizeOf<SHELLEXECUTEINFOW>(),
+                cbSize = (uint)sizeof(SHELLEXECUTEINFOW),
-                lpVerb = verbPCWSTR,
+                lpVerb = verbPtr,
-                lpFile = filenamePCWSTR,
+                lpFile = filenamePtr,
                 nShow = (int)SHOW_WINDOW_CMD.SW_SHOWNORMAL,
                 fMask = NativeHelpers.SEEMASKINVOKEIDLIST,
             };
 
-            return PInvoke.ShellExecuteEx(ref info);
+            return ShellExecuteEx(ref info);
         }
         finally
         {

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/DataSourceManager.cs

@@ -3,17 +3,17 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
 using ManagedCommon;
-using Windows.Win32;
+using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
-using Windows.Win32.System.Com;
+using Microsoft.CmdPal.Ext.Indexer.Native;
-using Windows.Win32.System.Search;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer;
 
 internal static class DataSourceManager
 {
-    private static readonly Guid CLSIDCollatorDataSource = new("9E175B8B-F52A-11D8-B9A5-505054503030");
-
     private static IDBInitialize _dataSource;
 
     public static IDBInitialize GetDataSource()
@@ -28,20 +28,29 @@ internal static class DataSourceManager
 
     private static bool InitializeDataSource()
     {
-        var hr = PInvoke.CoCreateInstance(CLSIDCollatorDataSource, null, CLSCTX.CLSCTX_INPROC_SERVER, typeof(IDBInitialize).GUID, out var dataSourceObj);
+        var riid = typeof(IDBInitialize).GUID;
+        var hr = NativeMethods.CoCreateInstance(ref Unsafe.AsRef(in NativeHelpers.CsWin32GUID.CLSIDCollatorDataSource), IntPtr.Zero, NativeHelpers.CLSCTXINPROCALL, ref riid, out var dataSourceObjPtr);
         if (hr != 0)
         {
             Logger.LogError("CoCreateInstance failed: " + hr);
             return false;
         }
 
-        if (dataSourceObj == null)
+        if (dataSourceObjPtr == IntPtr.Zero)
+        {
+            Logger.LogError("CoCreateInstance failed: dataSourceObjPtr is null");
+            return false;
+        }
+
+        var comWrappers = new StrategyBasedComWrappers();
+        _dataSource = (IDBInitialize)comWrappers.GetOrCreateObjectForComInstance(dataSourceObjPtr, CreateObjectFlags.None);
+
+        if (_dataSource == null)
         {
             Logger.LogError("CoCreateInstance failed: dataSourceObj is null");
             return false;
         }
 
-        _dataSource = (IDBInitialize)dataSourceObj;
         _dataSource.Initialize();
 
         return true;

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/OleDB/DBPROP.cs

@@ -3,6 +3,8 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Runtime.InteropServices;
+using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+using Microsoft.CmdPal.Ext.Indexer.Native;
 using Windows.Win32.Storage.IndexServer;
 using Windows.Win32.System.Com.StructuredStorage;
 
@@ -16,6 +18,6 @@ internal struct DBPROP
     public uint dwOptions;
     public uint dwStatus;
     public DBID colid;
-    public PROPVARIANT vValue;
+    public PropVariant vValue;
 #pragma warning restore SA1307 // Accessible fields should begin with upper-case letter
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/OleDB/IRowset.cs

@@ -4,40 +4,38 @@
 
 using System;
 using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer.OleDB;
 
-[ComImport]
 [Guid("0c733a7c-2a1c-11ce-ade5-00aa0044773d")]
-[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+[GeneratedComInterface]
-public interface IRowset
+public partial interface IRowset
 {
-    [PreserveSig]
+    void AddRefRows(
-    int AddRefRows(
         uint cRows,
-        [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] IntPtr[] rghRows,
+        [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] IntPtr[] rghRows,
-        [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] uint[] rgRefCounts,
+        [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] uint[] rgRefCounts,
-        [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] int[] rgRowStatus);
+        [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] int[] rgRowStatus);
 
-    [PreserveSig]
+    void GetData(
-    int GetData(
         IntPtr hRow,
         IntPtr hAccessor,
         IntPtr pData);
 
-    [PreserveSig]
+    void GetNextRows(
-    int GetNextRows(
        IntPtr hReserved,
        long lRowsOffset,
        long cRows,
        out uint pcRowsObtained,
        out IntPtr prghRows);
 
-    [PreserveSig]
+    void ReleaseRows(
-    int ReleaseRows(
         uint cRows,
-        [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] IntPtr[] rghRows,
+        [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] IntPtr[] rghRows,
         IntPtr rgRowOptions,
-        [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] uint[] rgRefCounts,
+        [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] uint[] rgRefCounts,
-        [Out, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] int[] rgRowStatus);
+        [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] int[] rgRowStatus);
+
+    void RestartPosition(nuint hReserved);
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/OleDB/IRowsetInfo.cs

@@ -4,29 +4,29 @@
 
 using System;
 using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer.OleDB;
 
-[ComImport]
 [Guid("0C733A55-2A1C-11CE-ADE5-00AA0044773D")]
-[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+[GeneratedComInterface]
-public interface IRowsetInfo
+public partial interface IRowsetInfo
 {
     [PreserveSig]
     int GetProperties(
         uint cPropertyIDSets,
-        [In, MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] DBPROPIDSET[] rgPropertyIDSets,
+        [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)] DBPROPIDSET[] rgPropertyIDSets,
         out ulong pcPropertySets,
         out IntPtr prgPropertySets);
 
     [PreserveSig]
     int GetReferencedRowset(
         uint iOrdinal,
-        [In] ref Guid riid,
+        ref Guid riid,
-        [Out, MarshalAs(UnmanagedType.Interface)] out object ppReferencedRowset);
+        [MarshalAs(UnmanagedType.Interface)] out object ppReferencedRowset);
 
     [PreserveSig]
     int GetSpecification(
-        [In] ref Guid riid,
+        ref Guid riid,
-        [Out, MarshalAs(UnmanagedType.Interface)] out object ppSpecification);
+        [MarshalAs(UnmanagedType.Interface)] out object ppSpecification);
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchQuery.cs

@@ -8,12 +8,10 @@ using System.Runtime.InteropServices;
 using System.Threading;
 using ManagedCommon;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.OleDB;
+using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.Utils;
 using Microsoft.CmdPal.Ext.Indexer.Native;
-using Windows.Win32;
+using static Microsoft.CmdPal.Ext.Indexer.Native.NativeHelpers;
-using Windows.Win32.System.Com;
-using Windows.Win32.System.Search;
-using Windows.Win32.UI.Shell.PropertiesSystem;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer;
 
@@ -120,11 +118,6 @@ internal sealed partial class SearchQuery : IDisposable
                 // We need to generate a search query string with the search text the user entered above
                 if (currentRowset != null)
                 {
-                    if (reuseRowset != null)
-                    {
-                        Marshal.ReleaseComObject(reuseRowset);
-                    }
-
                     // We have a previous rowset, this means the user is typing and we should store this
                     // recapture the where ID from this so the next ExecuteSync call will be faster
                     reuseRowset = currentRowset;
@@ -148,13 +141,12 @@ internal sealed partial class SearchQuery : IDisposable
 
     private bool HandleRow(IGetRow getRow, nuint rowHandle)
     {
-        object propertyStorePtr = null;
-
         try
         {
-            getRow.GetRowFromHROW(null, rowHandle, typeof(IPropertyStore).GUID, out propertyStorePtr);
+            var riid = CsWin32GUID.PropertyStore;
+
+            getRow.GetRowFromHROW(null, rowHandle, ref riid, out var propertyStore);
 
-            var propertyStore = (IPropertyStore)propertyStorePtr;
             if (propertyStore == null)
             {
                 Logger.LogError("Failed to get IPropertyStore interface");
@@ -176,14 +168,6 @@ internal sealed partial class SearchQuery : IDisposable
             Logger.LogError("Error handling row", ex);
             return false;
         }
-        finally
-        {
-            // Ensure the COM object is released if not returned
-            if (propertyStorePtr != null)
-            {
-                Marshal.ReleaseComObject(propertyStorePtr);
-            }
-        }
     }
 
     public bool FetchRows(int offset, int limit)
@@ -194,16 +178,17 @@ internal sealed partial class SearchQuery : IDisposable
             return false;
         }
 
-        if (currentRowset is not IGetRow)
+        IGetRow getRow = null;
+
+        try
+        {
+            getRow = (IGetRow)currentRowset;
+        }
+        catch (Exception)
         {
             Logger.LogInfo("Reset the current rowset");
             ExecuteSyncInternal();
-        }
+            getRow = (IGetRow)currentRowset;
-
-        if (currentRowset is not IGetRow getRow)
-        {
-            Logger.LogError("Rowset does not support IGetRow interface");
-            return false;
         }
 
         uint rowCountReturned;
@@ -211,12 +196,7 @@ internal sealed partial class SearchQuery : IDisposable
 
         try
         {
-            var res = currentRowset.GetNextRows(IntPtr.Zero, offset, limit, out rowCountReturned, out prghRows);
+            currentRowset.GetNextRows(IntPtr.Zero, offset, limit, out rowCountReturned, out prghRows);
-            if (res < 0)
-            {
-                Logger.LogError($"Error fetching rows: {res}");
-                return false;
-            }
 
             if (rowCountReturned == 0)
             {
@@ -237,11 +217,7 @@ internal sealed partial class SearchQuery : IDisposable
                 }
             }
 
-            res = currentRowset.ReleaseRows(rowCountReturned, rowHandles, IntPtr.Zero, null, null);
+            currentRowset.ReleaseRows(rowCountReturned, rowHandles, IntPtr.Zero, null, null);
-            if (res != 0)
-            {
-                Logger.LogError($"Error releasing rows: {res}");
-            }
 
             Marshal.FreeCoTaskMem(prghRows);
             prghRows = IntPtr.Zero;
@@ -268,11 +244,6 @@ internal sealed partial class SearchQuery : IDisposable
         var rowset = ExecuteCommand(queryStr);
         if (rowset != null)
         {
-            if (reuseRowset != null)
-            {
-                Marshal.ReleaseComObject(reuseRowset);
-            }
-
             reuseRowset = rowset;
             reuseWhereID = GetReuseWhereId(reuseRowset);
         }
@@ -280,110 +251,50 @@ internal sealed partial class SearchQuery : IDisposable
 
     private unsafe IRowset ExecuteCommand(string queryStr)
     {
-        object sessionPtr = null;
+        if (string.IsNullOrEmpty(queryStr))
-        object commandPtr = null;
+        {
+            return null;
+        }
 
         try
         {
             var session = (IDBCreateSession)DataSourceManager.GetDataSource();
-            session.CreateSession(null, typeof(IDBCreateCommand).GUID, out sessionPtr);
+            var guid = typeof(IDBCreateCommand).GUID;
-            if (sessionPtr == null)
+            session.CreateSession(IntPtr.Zero, ref guid, out var ppDBSession);
+
+            if (ppDBSession == null)
             {
                 Logger.LogError("CreateSession failed");
                 return null;
             }
 
-            var createCommand = (IDBCreateCommand)sessionPtr;
+            var createCommand = (IDBCreateCommand)ppDBSession;
-            createCommand.CreateCommand(null, typeof(ICommandText).GUID, out commandPtr);
+            guid = typeof(ICommandText).GUID;
-            if (commandPtr == null)
+            createCommand.CreateCommand(IntPtr.Zero, ref guid, out ICommandText commandText);
-            {
-                Logger.LogError("CreateCommand failed");
-                return null;
-            }
 
-            var commandText = (ICommandText)commandPtr;
             if (commandText == null)
             {
                 Logger.LogError("Failed to get ICommandText interface");
                 return null;
             }
 
-            commandText.SetCommandText(in NativeHelpers.OleDb.DbGuidDefault, queryStr);
+            var riid = NativeHelpers.OleDb.DbGuidDefault;
-            commandText.Execute(null, typeof(IRowset).GUID, null, null, out var rowsetPointer);
 
-            return rowsetPointer as IRowset;
+            var irowSetRiid = typeof(IRowset).GUID;
+
+            commandText.SetCommandText(ref riid, queryStr);
+            commandText.Execute(null, ref irowSetRiid, null, out var pcRowsAffected, out var rowsetPointer);
+
+            return rowsetPointer;
         }
         catch (Exception ex)
         {
             Logger.LogError("Unexpected error.", ex);
             return null;
         }
-        finally
-        {
-            // Release the command pointer
-            if (commandPtr != null)
-            {
-                Marshal.ReleaseComObject(commandPtr);
     }
 
-            // Release the session pointer
+    private unsafe DBPROP? GetPropset(IRowsetInfo rowsetInfo)
-            if (sessionPtr != null)
-            {
-                Marshal.ReleaseComObject(sessionPtr);
-            }
-        }
-    }
-
-    private IRowsetInfo GetRowsetInfo(IRowset rowset)
-    {
-        if (rowset == null)
-        {
-            return null;
-        }
-
-        var rowsetPtr = IntPtr.Zero;
-        var rowsetInfoPtr = IntPtr.Zero;
-
-        try
-        {
-            // Get the IUnknown pointer for the IRowset object
-            rowsetPtr = Marshal.GetIUnknownForObject(rowset);
-
-            // Query for IRowsetInfo interface
-            var rowsetInfoGuid = typeof(IRowsetInfo).GUID;
-            var res = Marshal.QueryInterface(rowsetPtr, in rowsetInfoGuid, out rowsetInfoPtr);
-            if (res != 0)
-            {
-                Logger.LogError($"Error getting IRowsetInfo interface: {res}");
-                return null;
-            }
-
-            // Marshal the interface pointer to the actual IRowsetInfo object
-            var rowsetInfo = (IRowsetInfo)Marshal.GetObjectForIUnknown(rowsetInfoPtr);
-            return rowsetInfo;
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError($"Exception occurred while getting IRowsetInfo. ", ex);
-            return null;
-        }
-        finally
-        {
-            // Release the IRowsetInfo pointer if it was obtained
-            if (rowsetInfoPtr != IntPtr.Zero)
-            {
-                Marshal.Release(rowsetInfoPtr); // Release the IRowsetInfo pointer
-            }
-
-            // Release the IUnknown pointer for the IRowset object
-            if (rowsetPtr != IntPtr.Zero)
-            {
-                Marshal.Release(rowsetPtr);
-            }
-        }
-    }
-
-    private DBPROP? GetPropset(IRowsetInfo rowsetInfo)
     {
         var prgPropSetsPtr = IntPtr.Zero;
 
@@ -403,16 +314,15 @@ internal sealed partial class SearchQuery : IDisposable
                 return null;
             }
 
-            var firstPropSetPtr = new IntPtr(prgPropSetsPtr.ToInt64());
+            var firstPropSetPtr = (DBPROPSET*)prgPropSetsPtr.ToInt64();
-            var propSet = Marshal.PtrToStructure<DBPROPSET>(firstPropSetPtr);
+            var propSet = *firstPropSetPtr;
             if (propSet.cProperties == 0 || propSet.rgProperties == IntPtr.Zero)
             {
                 return null;
             }
 
-            var propPtr = new IntPtr(propSet.rgProperties.ToInt64());
+            var propPtr = (DBPROP*)propSet.rgProperties.ToInt64();
-            var prop = Marshal.PtrToStructure<DBPROP>(propPtr);
+            return *propPtr;
-            return prop;
         }
         catch (Exception ex)
         {
@@ -431,7 +341,8 @@ internal sealed partial class SearchQuery : IDisposable
 
     private uint GetReuseWhereId(IRowset rowset)
     {
-        var rowsetInfo = GetRowsetInfo(rowset);
+        var rowsetInfo = (IRowsetInfo)rowset;
+
         if (rowsetInfo == null)
         {
             return 0;
@@ -443,9 +354,9 @@ internal sealed partial class SearchQuery : IDisposable
             return 0;
         }
 
-        if (prop?.vValue.Anonymous.Anonymous.vt == VARENUM.VT_UI4)
+        if (prop?.vValue.VarType == VarEnum.VT_UI4)
         {
-            var value = prop?.vValue.Anonymous.Anonymous.Anonymous.ulVal;
+            var value = prop?.vValue._ulong;
             return (uint)value;
         }
 
@@ -462,18 +373,6 @@ internal sealed partial class SearchQuery : IDisposable
             Marshal.FreeCoTaskMem(dbPropIdSet.rgPropertyIDs);
         }
 
-        if (reuseRowset != null)
-        {
-            Marshal.ReleaseComObject(reuseRowset);
-            reuseRowset = null;
-        }
-
-        if (currentRowset != null)
-        {
-            Marshal.ReleaseComObject(currentRowset);
-            currentRowset = null;
-        }
-
         queryCompletedEvent?.Dispose();
     }
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SearchResult.cs

@@ -3,12 +3,11 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
+using System.Runtime.InteropServices;
 using ManagedCommon;
+using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.Utils;
 using Microsoft.CmdPal.Ext.Indexer.Native;
-using Windows.Win32.System.Com;
-using Windows.Win32.System.Com.StructuredStorage;
-using Windows.Win32.UI.Shell.PropertiesSystem;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer;
 
@@ -39,14 +38,9 @@ internal sealed class SearchResult
     {
         try
         {
-            var key = NativeHelpers.PropertyKeys.PKEYItemNameDisplay;
+            propStore.GetValue(NativeHelpers.PropertyKeys.PKEYItemNameDisplay, out var itemNameDisplay);
-            propStore.GetValue(&key, out var itemNameDisplay);
+            propStore.GetValue(NativeHelpers.PropertyKeys.PKEYItemUrl, out var itemUrl);
-
+            propStore.GetValue(NativeHelpers.PropertyKeys.PKEYKindText, out var kindText);
-            key = NativeHelpers.PropertyKeys.PKEYItemUrl;
-            propStore.GetValue(&key, out var itemUrl);
-
-            key = NativeHelpers.PropertyKeys.PKEYKindText;
-            propStore.GetValue(&key, out var kindText);
 
             var filePath = GetFilePath(ref itemUrl);
             var isFolder = IsFoder(ref kindText);
@@ -67,28 +61,34 @@ internal sealed class SearchResult
         }
     }
 
-    private static bool IsFoder(ref PROPVARIANT kindText)
+    private static bool IsFoder(ref PropVariant kindText)
     {
         var kindString = GetStringFromPropVariant(ref kindText);
         return string.Equals(kindString, "Folder", StringComparison.OrdinalIgnoreCase);
     }
 
-    private static string GetFilePath(ref PROPVARIANT itemUrl)
+    private static string GetFilePath(ref PropVariant itemUrl)
     {
         var filePath = GetStringFromPropVariant(ref itemUrl);
         filePath = UrlToFilePathConverter.Convert(filePath);
         return filePath;
     }
 
-    private static string GetStringFromPropVariant(ref PROPVARIANT propVariant)
+    private static string GetStringFromPropVariant(ref PropVariant propVariant)
     {
-        if (propVariant.Anonymous.Anonymous.vt == VARENUM.VT_LPWSTR)
+        if (propVariant.VarType == System.Runtime.InteropServices.VarEnum.VT_LPWSTR)
         {
-            var pwszVal = propVariant.Anonymous.Anonymous.Anonymous.pwszVal;
+            var pwszVal = propVariant._ptr;
-            if (pwszVal != null)
+
+            if (pwszVal == IntPtr.Zero)
             {
-                return pwszVal.ToString();
+                return string.Empty;
             }
+
+            // convert to string
+            var str = Marshal.PtrToStringUni(pwszVal);
+
+            return str;
         }
 
         return string.Empty;

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/CSearchCatalogManager.cs

@@ -1,18 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
-
-[CoClass(typeof(CSearchCatalogManagerClass))]
-[Guid("AB310581-AC80-11D1-8DF3-00C04FB6EF50")]
-[ComImport]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("Naming", "CA1715:Identifiers should have correct prefix", Justification = "Using original name from type lib")]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1302:Interface names should begin with I", Justification = "Using original name from type lib")]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("Style", "IDE1006:Naming Styles", Justification = "Using original name from type lib")]
-public interface CSearchCatalogManager : ISearchCatalogManager
-{
-}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/CSearchCatalogManagerClass.cs

@@ -1,131 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
-
-[ComConversionLoss]
-[Guid("AAB49DD5-AD0B-40AE-B654-AE8976BF6BD2")]
-[ClassInterface((short)0)]
-[ComImport]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.OrderingRules", "SA1212:Property accessors should follow order", Justification = "The order of the property accessors must match the order in which the methods were defined in the vtable")]
-public class CSearchCatalogManagerClass : ISearchCatalogManager, CSearchCatalogManager
-{
-    [DispId(1610678272)]
-    public virtual extern string Name
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern IntPtr GetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void SetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName, [In] ref object pValue);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void GetCatalogStatus(
-      out object pStatus,
-      out object pPausedReason);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void Reset();
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void Reindex();
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void ReindexMatchingURLs([MarshalAs(UnmanagedType.LPWStr), In] string pszPattern);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void ReindexSearchRoot([MarshalAs(UnmanagedType.LPWStr), In] string pszRoot);
-
-    [DispId(1610678280)]
-    public virtual extern uint ConnectTimeout
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [DispId(1610678282)]
-    public virtual extern uint DataTimeout
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern int NumberOfItems();
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void NumberOfItemsToIndex(
-      out int plIncrementalCount,
-      out int plNotificationQueue,
-      out int plHighPriorityQueue);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.LPWStr)]
-    public virtual extern string URLBeingIndexed();
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern uint GetURLIndexingState([MarshalAs(UnmanagedType.LPWStr), In] string psz);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    public virtual extern object GetPersistentItemsChangedSink();
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void RegisterViewForNotification(
-      [MarshalAs(UnmanagedType.LPWStr), In] string pszView,
-      [MarshalAs(UnmanagedType.Interface), In] object pViewChangedSink,
-      out uint pdwCookie);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void GetItemsChangedSink(
-      [MarshalAs(UnmanagedType.Interface), In] object pISearchNotifyInlineSite,
-      [In] ref Guid riid,
-      out IntPtr ppv,
-      out Guid pGUIDCatalogResetSignature,
-      out Guid pGUIDCheckPointSignature,
-      out uint pdwLastCheckPointNumber);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void UnregisterViewForNotification([In] uint dwCookie);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void SetExtensionClusion([MarshalAs(UnmanagedType.LPWStr), In] string pszExtension, [In] int fExclude);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    public virtual extern object EnumerateExcludedExtensions();
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    public virtual extern CSearchQueryHelper GetQueryHelper();
-
-    [DispId(1610678295)]
-    public virtual extern int DiacriticSensitivity
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    public virtual extern object GetCrawlScopeManager();
-}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/CSearchManager.cs

@@ -1,18 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
-
-[CoClass(typeof(CSearchManagerClass))]
-[Guid("AB310581-AC80-11D1-8DF3-00C04FB6EF69")]
-[ComImport]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("Naming", "CA1715:Identifiers should have correct prefix", Justification = "Using original name from type lib")]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1302:Interface names should begin with I", Justification = "Using original name from type lib")]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("Style", "IDE1006:Naming Styles", Justification = "Using original name from type lib")]
-public interface CSearchManager : ISearchManager
-{
-}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/CSearchManagerClass.cs

@@ -1,90 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
-
-[Guid("7D096C5F-AC08-4F1F-BEB7-5C22C517CE39")]
-[TypeLibType(2)]
-[ClassInterface((short)0)]
-[ComConversionLoss]
-[ComImport]
-public class CSearchManagerClass : ISearchManager, CSearchManager
-{
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void GetIndexerVersionStr([MarshalAs(UnmanagedType.LPWStr)] out string ppszVersionString);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void GetIndexerVersion(out uint pdwMajor, out uint pdwMinor);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern IntPtr GetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void SetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName, [In] ref object pValue);
-
-    [DispId(1610678276)]
-    public virtual extern string ProxyName
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [DispId(1610678277)]
-    public virtual extern string BypassList
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void SetProxy(
-      [In] object sUseProxy,
-      [In] int fLocalByPassProxy,
-      [In] uint dwPortNumber,
-      [MarshalAs(UnmanagedType.LPWStr), In] string pszProxyName,
-      [MarshalAs(UnmanagedType.LPWStr), In] string pszByPassList);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    public virtual extern CSearchCatalogManager GetCatalog([MarshalAs(UnmanagedType.LPWStr), In] string pszCatalog);
-
-    [DispId(1610678280)]
-    public virtual extern string UserAgent
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-    }
-
-    [DispId(1610678282)]
-    public virtual extern object UseProxy
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [DispId(1610678283)]
-    public virtual extern int LocalBypass
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [DispId(1610678284)]
-    public virtual extern uint PortNumber
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/CSearchQueryHelper.cs

@@ -1,18 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
-
-[Guid("AB310581-AC80-11D1-8DF3-00C04FB6EF63")]
-[CoClass(typeof(CSearchQueryHelperClass))]
-[ComImport]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("Naming", "CA1715:Identifiers should have correct prefix", Justification = "Using original name from type lib")]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1302:Interface names should begin with I", Justification = "Using original name from type lib")]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("Style", "IDE1006:Naming Styles", Justification = "Using original name from type lib")]
-public interface CSearchQueryHelper : ISearchQueryHelper
-{
-}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/CSearchQueryHelperClass.cs

@@ -1,134 +0,0 @@
-// Copyright (c) Microsoft Corporation
-// The Microsoft Corporation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-using System;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
-
-[ClassInterface((short)0)]
-[Guid("B271E955-09E1-42E1-9B95-5994A534B613")]
-[ComImport]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.OrderingRules", "SA1212:Property accessors should follow order", Justification = "The order of the property accessors must match the order in which the methods were defined in the vtable")]
-public class CSearchQueryHelperClass : ISearchQueryHelper, CSearchQueryHelper
-{
-    [DispId(1610678272)]
-    public virtual extern string ConnectionString
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [DispId(1610678273)]
-    public virtual extern uint QueryContentLocale
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [DispId(1610678275)]
-    public virtual extern uint QueryKeywordLocale
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [DispId(1610678277)]
-    public virtual extern object QueryTermExpansion
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [DispId(1610678279)]
-    public virtual extern object QuerySyntax
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [DispId(1610678281)]
-    public virtual extern string QueryContentProperties
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [DispId(1610678283)]
-    public virtual extern string QuerySelectColumns
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [DispId(1610678285)]
-    public virtual extern string QueryWhereRestrictions
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [DispId(1610678287)]
-    public virtual extern string QuerySorting
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.LPWStr)]
-    public virtual extern string GenerateSQLFromUserQuery([MarshalAs(UnmanagedType.LPWStr), In] string pszQuery);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    public virtual extern void WriteProperties(
-      [In] int itemID,
-      [In] uint dwNumberOfColumns,
-      [In] ref object pColumns,
-      [In] ref object pValues,
-      [In] ref object pftGatherModifiedTime);
-
-    [DispId(1610678291)]
-    public virtual extern int QueryMaxResults
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/ICommand.cs

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+using Microsoft.CmdPal.Ext.Indexer.Indexer.OleDB;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[Guid("0C733A63-2A1C-11CE-ADE5-00AA0044773D")]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
+public partial interface ICommand
+{
+    void Cancel();
+
+    void Execute([MarshalAs(UnmanagedType.Interface)] object pUnkOuter, ref Guid riid, [Optional][MarshalAs(UnmanagedType.Interface)] object pParams, [Optional]out int pcRowsAffected, out IRowset ppRowset);
+
+    void GetDBSession(ref Guid riid, out IntPtr ppSession);
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/ICommandText.cs

@@ -0,0 +1,23 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.CmdPal.Ext.Indexer.Indexer.OleDB;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[Guid("0C733A27-2A1C-11CE-ADE5-00AA0044773D")]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
+public partial interface ICommandText : ICommand
+{
+    void GetCommandText([Optional] ref Guid pguidDialect, out IntPtr ppwszCommand);
+
+    void SetCommandText(ref Guid rguidDialect, string pwszCommand);
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/IDBCreateCommand.cs

@@ -0,0 +1,16 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[Guid("0C733A1D-2A1C-11CE-ADE5-00AA0044773D")]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
+public partial interface IDBCreateCommand
+{
+    void CreateCommand(IntPtr pUnkOuter, ref Guid riid, out ICommandText ppCommand);
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/IDBCreateSession.cs

@@ -0,0 +1,20 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[Guid("0C733A5D-2A1C-11CE-ADE5-00AA0044773D")]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
+public partial interface IDBCreateSession
+{
+    void CreateSession(IntPtr pUnkOuter, ref Guid riid, [MarshalAs(UnmanagedType.Interface)] out object ppDBSession);
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/IDBInitialize.cs

@@ -0,0 +1,22 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[Guid("0C733A8B-2A1C-11CE-ADE5-00AA0044773D")]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
+public partial interface IDBInitialize
+{
+    void Initialize();
+
+    void Uninitialize();
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/IGetRow.cs

@@ -0,0 +1,23 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+using System.Text;
+using System.Threading.Tasks;
+using Microsoft.CmdPal.Ext.Indexer.Native;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[Guid("0C733AAF-2A1C-11CE-ADE5-00AA0044773D")]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
+public partial interface IGetRow
+{
+    unsafe void GetRowFromHROW([MarshalAs(UnmanagedType.Interface)] object pUnkOuter, nuint hRow, ref Guid riid, [MarshalAs(UnmanagedType.Interface)] out IPropertyStore ppUnk);
+
+    unsafe string GetURLFromHROW(nuint hRow);
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/IPropertyStore.cs

@@ -0,0 +1,26 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+
+[assembly: System.Runtime.CompilerServices.DisableRuntimeMarshalling]
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[Guid("886d8eeb-8cf2-4446-8d02-cdba1dbdcf99")]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
+public partial interface IPropertyStore
+{
+    uint GetCount();
+
+    PropertyKey GetAt(uint iProp);
+
+    void GetValue(in PropertyKey pkey, out PropVariant pv);
+
+    void SetValue(in PropertyKey pkey, in PropVariant pv);
+
+    void Commit();
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/ISearchCatalogManager.cs

@@ -5,125 +5,68 @@
 using System;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
 
 [Guid("AB310581-AC80-11D1-8DF3-00C04FB6EF50")]
-[ComConversionLoss]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
-[InterfaceType(1)]
+[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1300:Element should begin with upper-case letter", Justification = "Please do not change the function name")]
-[ComImport]
+public partial interface ISearchCatalogManager
-[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.OrderingRules", "SA1212:Property accessors should follow order", Justification = "The order of the property accessors must match the order in which the methods were defined in the vtable")]
-public interface ISearchCatalogManager
 {
-    [DispId(1610678272)]
+    string get_Name();
-    string Name
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void GetParameter(string pszName, out IntPtr pValue);
-    IntPtr GetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void SetParameter(string pszName, ref IntPtr pValue);
-    void SetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName, [In] ref object pValue);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void GetCatalogStatus(out uint pdwStatus, out uint pdwPausedReason);
-    void GetCatalogStatus(out object pStatus, out object pPausedReason);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     void Reset();
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     void Reindex();
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void ReindexMatchingURLs(string pszPattern);
-    void ReindexMatchingURLs([MarshalAs(UnmanagedType.LPWStr), In] string pszPattern);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void ReindexSearchRoot(string pszRoot);
-    void ReindexSearchRoot([MarshalAs(UnmanagedType.LPWStr), In] string pszRoot);
 
-    [DispId(1610678280)]
+    uint get_ConnectTimeout();
-    uint ConnectTimeout
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [DispId(1610678282)]
+    void put_ConnectTimeout(uint dwTimeout);
-    uint DataTimeout
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    uint get_DataTimeout();
-    int NumberOfItems();
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void put_DataTimeout(uint dwTimeout);
-    void NumberOfItemsToIndex(
+
-      out int plIncrementalCount,
+    uint NumberOfItems();
-      out int plNotificationQueue,
+
-      out int plHighPriorityQueue);
+    uint NumberOfItemsToIndex();
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     [return: MarshalAs(UnmanagedType.LPWStr)]
     string URLBeingIndexed();
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void GetURLIndexingState(string pszURL, out uint pdwState);
-    uint GetURLIndexingState([MarshalAs(UnmanagedType.LPWStr), In] string psz);
+
+    IntPtr GetPersistentItemsChangedSink();
+
+    void RegisterViewForNotification(string pszView, IntPtr pViewNotify, out uint pdwCookie);
+
+    IntPtr GetItemsChangedSink();
+
+    void UnregisterViewForNotification(uint dwCookie);
+
+    void SetExtensionClusion(string pszExtension, [MarshalAs(UnmanagedType.Bool)] bool fExclude);
+
+    void EnumerateExcludedExtensions();
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     [return: MarshalAs(UnmanagedType.Interface)]
-    object GetPersistentItemsChangedSink();
+    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    ISearchQueryHelper GetQueryHelper();
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    [return: MarshalAs(UnmanagedType.Bool)]
-    void RegisterViewForNotification(
+    bool get_DiacriticSensitivity();
-      [MarshalAs(UnmanagedType.LPWStr), In] string pszView,
-      [MarshalAs(UnmanagedType.Interface), In] object pViewChangedSink,
-      out uint pdwCookie);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void put_DiacriticSensitivity([MarshalAs(UnmanagedType.Bool)] bool fDiacriticSensitive);
-    void GetItemsChangedSink(
-      [MarshalAs(UnmanagedType.Interface), In] object pISearchNotifyInlineSite,
-      [In] ref Guid riid,
-      out IntPtr ppv,
-      out Guid pGUIDCatalogResetSignature,
-      out Guid pGUIDCheckPointSignature,
-      out uint pdwLastCheckPointNumber);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    IntPtr GetCrawlScopeManager();
-    void UnregisterViewForNotification([In] uint dwCookie);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    void SetExtensionClusion([MarshalAs(UnmanagedType.LPWStr), In] string pszExtension, [In] int fExclude);
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    object EnumerateExcludedExtensions();
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    CSearchQueryHelper GetQueryHelper();
-
-    [DispId(1610678295)]
-    int DiacriticSensitivity
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
-
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-    [return: MarshalAs(UnmanagedType.Interface)]
-    object GetCrawlScopeManager();
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/ISearchManager.cs

@@ -3,87 +3,46 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
 
-[ComConversionLoss]
 [Guid("AB310581-AC80-11D1-8DF3-00C04FB6EF69")]
-[InterfaceType(1)]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
-[ComImport]
+[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1300:Element should begin with upper-case letter", Justification = "Please do not change the function name")]
-public interface ISearchManager
+public partial interface ISearchManager
 {
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    string GetIndexerVersionStr();
-    void GetIndexerVersionStr([MarshalAs(UnmanagedType.LPWStr)] out string ppszVersionString);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     void GetIndexerVersion(out uint pdwMajor, out uint pdwMinor);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void GetParameter(string pszName, [MarshalAs(UnmanagedType.Interface)] out object pValue);
-    IntPtr GetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void SetParameter(string pszName, [MarshalAs(UnmanagedType.Interface)] ref object pValue);
-    void SetParameter([MarshalAs(UnmanagedType.LPWStr), In] string pszName, [In] ref object pValue);
 
-    [DispId(1610678276)]
+    [return: MarshalAs(UnmanagedType.Bool)]
-    string ProxyName
+    bool get_UseProxy();
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [DispId(1610678277)]
+    string get_BypassList();
-    string BypassList
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     void SetProxy(
-      [In] object sUseProxy,
+        string pszProxyName,
-      [In] int fLocalByPassProxy,
+        [MarshalAs(UnmanagedType.Bool)] bool fLocalBypass,
-      [In] uint dwPortNumber,
+        string pszBypassList,
-      [MarshalAs(UnmanagedType.LPWStr), In] string pszProxyName,
+        uint dwPortNumber);
-      [MarshalAs(UnmanagedType.LPWStr), In] string pszByPassList);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     [return: MarshalAs(UnmanagedType.Interface)]
-    CSearchCatalogManager GetCatalog([MarshalAs(UnmanagedType.LPWStr), In] string pszCatalog);
+    ISearchCatalogManager GetCatalog(string pszCatalog);
 
-    [DispId(1610678280)]
+    string get_UserAgent();
-    string UserAgent
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-    }
 
-    [DispId(1610678282)]
+    void put_UserAgent(string pszUserAgent);
-    object UseProxy
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [DispId(1610678283)]
+    string get_ProxyName();
-    int LocalBypass
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [DispId(1610678284)]
+    [return: MarshalAs(UnmanagedType.Bool)]
-    uint PortNumber
+    bool get_LocalBypass();
-    {
+
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    uint get_PortNumber();
-        get;
-    }
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/ISearchQueryHelper.cs

@@ -5,130 +5,74 @@
 using System;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
 
 [Guid("AB310581-AC80-11D1-8DF3-00C04FB6EF63")]
-[InterfaceType(1)]
+[GeneratedComInterface(StringMarshalling = StringMarshalling.Utf16)]
-[ComImport]
+[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.NamingRules", "SA1300:Element should begin with upper-case letter", Justification = "I don't want to change the name")]
-[System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.OrderingRules", "SA1212:Property accessors should follow order", Justification = "The order of the property accessors must match the order in which the methods were defined in the vtable")]
+public partial interface ISearchQueryHelper
-public interface ISearchQueryHelper
 {
-    [DispId(1610678272)]
+    string GetConnectionString();
-    string ConnectionString
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [DispId(1610678273)]
+    void SetQueryContentLocale(int lcid);
-    uint QueryContentLocale
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [DispId(1610678275)]
+    uint GetQueryContentLocale();
-    uint QueryKeywordLocale
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [DispId(1610678277)]
+    void SetQueryKeywordLocale(int lcid);
-    object QueryTermExpansion
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [DispId(1610678279)]
+    uint GetQueryKeywordLocale();
-    object QuerySyntax
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
-    }
 
-    [DispId(1610678281)]
+    void SetQueryTermExpansion(SEARCH_TERM_EXPANSION expandTerms);
-    string QueryContentProperties
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [DispId(1610678283)]
+    void GetQueryTermExpansion(out SEARCH_TERM_EXPANSION pExpandTerms);
-    string QuerySelectColumns
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [DispId(1610678285)]
+    void SetQuerySyntax(SEARCH_QUERY_SYNTAX querySyntax);
-    string QueryWhereRestrictions
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [DispId(1610678287)]
+    [return: MarshalAs(UnmanagedType.Interface)]
-    string QuerySorting
+    object GetQuerySyntax();
-    {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [param: MarshalAs(UnmanagedType.LPWStr)]
-        [param: In]
-        set;
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        [return: MarshalAs(UnmanagedType.LPWStr)]
-        get;
-    }
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    void SetQueryContentProperties(string pszContentProperties);
-    [return: MarshalAs(UnmanagedType.LPWStr)]
+
-    string GenerateSQLFromUserQuery([MarshalAs(UnmanagedType.LPWStr), In] string pszQuery);
+    string GetQueryContentProperties();
+
+    void SetQuerySelectColumns(string pszColumns);
+
+    string GetQuerySelectColumns();
+
+    void SetQueryWhereRestrictions(string pszRestrictions);
+
+    string GetQueryWhereRestrictions();
+
+    void SetQuerySorting(string pszSorting);
+
+    string GetQuerySorting();
+
+    string GenerateSQLFromUserQuery(string pszQuery);
 
-    [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
     void WriteProperties(
-      [In] int itemID,
+      int itemID,
-      [In] uint dwNumberOfColumns,
+      uint dwNumberOfColumns,
-      [In] ref object pColumns,
+      [MarshalAs(UnmanagedType.Interface)] ref object pColumns,
-      [In] ref object pValues,
+      [MarshalAs(UnmanagedType.Interface)] ref object pValues,
-      [In] ref object pftGatherModifiedTime);
+      [MarshalAs(UnmanagedType.Interface)] ref object pftGatherModifiedTime);
 
-    [DispId(1610678291)]
+    void SetQueryMaxResults(int lMaxResults);
-    int QueryMaxResults
+
+    int GetQueryMaxResults();
+}
+
+public enum SEARCH_TERM_EXPANSION
 {
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
+    SEARCH_TERM_NO_EXPANSION,
-        [param: In]
+    SEARCH_TERM_PREFIX_ALL,
-        set;
+    SEARCH_TERM_STEM_ALL,
-        [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)]
-        get;
 }
+
+public enum SEARCH_QUERY_SYNTAX
+{
+    SEARCH_NO_QUERY_SYNTAX,
+    SEARCH_ADVANCED_QUERY_SYNTAX,
+    SEARCH_NATURAL_QUERY_SYNTAX,
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/PropVariant.cs

@@ -0,0 +1,70 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.InteropServices;
+using VARTYPE = System.Runtime.InteropServices.VarEnum;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+#pragma warning disable SA1307 // Accessible fields should begin with upper-case letter
+[StructLayout(LayoutKind.Explicit, Pack = 8)]
+public struct PropVariant
+{
+    /// <summary>Value type tag.</summary>
+    [FieldOffset(0)]
+    public ushort vt;
+
+    [FieldOffset(2)]
+    public ushort wReserved1;
+
+    /// <summary>Reserved for future use.</summary>
+    [FieldOffset(4)]
+    public ushort wReserved2;
+
+    /// <summary>Reserved for future use.</summary>
+    [FieldOffset(6)]
+    public ushort wReserved3;
+
+    /// <summary>The decimal value when VT_DECIMAL.</summary>
+    [FieldOffset(0)]
+    internal decimal _decimal;
+
+    /// <summary>The raw data pointer.</summary>
+    [FieldOffset(8)]
+    internal IntPtr _ptr;
+
+    /// <summary>The FILETIME when VT_FILETIME.</summary>
+    [FieldOffset(8)]
+    internal System.Runtime.InteropServices.ComTypes.FILETIME _ft;
+
+    [FieldOffset(8)]
+    internal BLOB _blob;
+
+    /// <summary>The value when a numeric value less than 8 bytes.</summary>
+    [FieldOffset(8)]
+    internal ulong _ulong;
+
+    public PropVariant(string value)
+    {
+        ArgumentNullException.ThrowIfNull(value);
+        vt = (ushort)VarEnum.VT_LPWSTR;
+        _ptr = Marshal.StringToCoTaskMemUni(value);
+    }
+
+    public VarEnum VarType { get => (VarEnum)vt; set => vt = (ushort)(VARTYPE)value; }
+}
+
+[StructLayout(LayoutKind.Sequential, Pack = 0)]
+public struct BLOB
+{
+    /// <summary>The count of bytes</summary>
+    public uint cbSize;
+
+    /// <summary>A pointer to the allocated array of bytes.</summary>
+    public IntPtr pBlobData;
+}
+
+#pragma warning restore SA1307 // Accessible fields should begin with upper-case letter

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/SystemSearch/PropertyKey.cs

@@ -0,0 +1,27 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+
+[StructLayout(LayoutKind.Sequential)]
+public struct PropertyKey
+{
+    public Guid FmtID;
+
+    public uint PID;
+
+    public PropertyKey(Guid fmtid, uint pid)
+    {
+        this.FmtID = fmtid;
+        this.PID = pid;
+    }
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Indexer/Utils/QueryStringBuilder.cs

@@ -2,12 +2,17 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
 using System.Globalization;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
 using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
+using Microsoft.CmdPal.Ext.Indexer.Native;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Indexer.Utils;
 
-internal sealed class QueryStringBuilder
+internal sealed partial class QueryStringBuilder
 {
     private const string Properties = "System.ItemUrl, System.ItemNameDisplay, path, System.Search.EntryID, System.Kind, System.KindText";
     private const string SystemIndex = "SystemIndex";
@@ -24,16 +29,40 @@ internal sealed class QueryStringBuilder
     {
         if (queryHelper == null)
         {
-            var searchManager = new CSearchManager();
+            ComWrappers cw = new StrategyBasedComWrappers();
-            ISearchCatalogManager catalogManager = searchManager.GetCatalog(SystemIndex);
-            queryHelper = catalogManager.GetQueryHelper();
 
-            queryHelper.QuerySelectColumns = Properties;
+            var hr = NativeMethods.CoCreateInstance(ref Unsafe.AsRef(in NativeHelpers.CsWin32GUID.CLSIDSearchManager), IntPtr.Zero, NativeHelpers.CLSCTXINPROCALL, ref Unsafe.AsRef(in NativeHelpers.CsWin32GUID.IIDISearchManager), out var searchManagerPtr);
-            queryHelper.QueryContentProperties = "System.FileName";
+            if (hr != 0)
-            queryHelper.QuerySorting = OrderConditions;
+            {
+                throw new ArgumentException($"Failed to create SearchManager instance. HR: 0x{hr:X}");
             }
 
-        queryHelper.QueryWhereRestrictions = "AND " + ScopeFileConditions + "AND ReuseWhere(" + whereId.ToString(CultureInfo.InvariantCulture) + ")";
+            var searchManager = (ISearchManager)cw.GetOrCreateObjectForComInstance(
+                searchManagerPtr, CreateObjectFlags.None);
+
+            if (searchManager == null)
+            {
+                throw new ArgumentException("Failed to get ISearchManager interface");
+            }
+
+            ISearchCatalogManager catalogManager = searchManager.GetCatalog(SystemIndex);
+            if (catalogManager == null)
+            {
+                throw new ArgumentException($"Failed to get catalog manager for {SystemIndex}");
+            }
+
+            queryHelper = catalogManager.GetQueryHelper();
+            if (queryHelper == null)
+            {
+                throw new ArgumentException("Failed to get query helper from catalog manager");
+            }
+
+            queryHelper.SetQuerySelectColumns(Properties);
+            queryHelper.SetQueryContentProperties("System.FileName");
+            queryHelper.SetQuerySorting(OrderConditions);
+        }
+
+        queryHelper.SetQueryWhereRestrictions("AND " + ScopeFileConditions + "AND ReuseWhere(" + whereId.ToString(CultureInfo.InvariantCulture) + ")");
         return queryHelper.GenerateSQLFromUserQuery(searchText);
     }
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Microsoft.CmdPal.Ext.Indexer.csproj

@@ -1,12 +1,12 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\..\..\Common.Dotnet.CsWinRT.props" />
+  <Import Project="..\..\..\..\Common.Dotnet.AotCompatibility.props" />
   <PropertyGroup>
     <RootNamespace>Microsoft.CmdPal.Ext.Indexer</RootNamespace>
-
     <OutputPath>$(SolutionDir)$(Platform)\$(Configuration)\WinUI3Apps\CmdPal</OutputPath>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <AppendRuntimeIdentifierToOutputPath>false</AppendRuntimeIdentifierToOutputPath>
-
+	<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <ItemGroup>
@@ -46,4 +46,9 @@
     </EmbeddedResource>
   </ItemGroup>
 
+  <ItemGroup>
+	<AdditionalFiles Include="NativeMethods.txt" />
+	<AdditionalFiles Include="NativeMethods.json" />
+  </ItemGroup>
+
 </Project>

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Native/NativeHelpers.cs

@@ -1,25 +1,34 @@
 // Copyright (c) Microsoft Corporation
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
-
 using System;
-using Windows.Win32.UI.Shell.PropertiesSystem;
+using Microsoft.CmdPal.Ext.Indexer.Indexer.SystemSearch;
 
 namespace Microsoft.CmdPal.Ext.Indexer.Native;
 
-internal sealed class NativeHelpers
+public sealed partial class NativeHelpers
 {
     public const uint SEEMASKINVOKEIDLIST = 12;
 
-    internal static class PropertyKeys
+    public const uint CLSCTXINPROCALL = 0x17;
+
+    public struct PropertyKeys
     {
-        public static readonly PROPERTYKEY PKEYItemNameDisplay = new() { fmtid = new System.Guid("B725F130-47EF-101A-A5F1-02608C9EEBAC"), pid = 10 };
+        public static readonly PropertyKey PKEYItemNameDisplay = new() { FmtID = new System.Guid("B725F130-47EF-101A-A5F1-02608C9EEBAC"), PID = 10 };
-        public static readonly PROPERTYKEY PKEYItemUrl = new() { fmtid = new System.Guid("49691C90-7E17-101A-A91C-08002B2ECDA9"), pid = 9 };
+        public static readonly PropertyKey PKEYItemUrl = new() { FmtID = new System.Guid("49691C90-7E17-101A-A91C-08002B2ECDA9"), PID = 9 };
-        public static readonly PROPERTYKEY PKEYKindText = new() { fmtid = new System.Guid("F04BEF95-C585-4197-A2B7-DF46FDC9EE6D"), pid = 100 };
+        public static readonly PropertyKey PKEYKindText = new() { FmtID = new System.Guid("F04BEF95-C585-4197-A2B7-DF46FDC9EE6D"), PID = 100 };
     }
 
-    internal static class OleDb
+    public static class OleDb
     {
         public static readonly Guid DbGuidDefault = new("C8B521FB-5CF3-11CE-ADE5-00AA0044773D");
     }
+
+    public static class CsWin32GUID
+    {
+        public static readonly Guid CLSIDSearchManager = new Guid("7D096C5F-AC08-4F1F-BEB7-5C22C517CE39");
+        public static readonly Guid IIDISearchManager = new Guid("AB310581-AC80-11D1-8DF3-00C04FB6EF69");
+        public static readonly Guid CLSIDCollatorDataSource = new Guid("9E175B8B-F52A-11D8-B9A5-505054503030");
+        public static readonly Guid PropertyStore = new Guid("886D8EEB-8CF2-4446-8D02-CDBA1DBDCF99");
+    }
 }

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/Native/NativeMethods.cs

@@ -0,0 +1,47 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+using Windows.Win32.UI.Shell;
+
+namespace Microsoft.CmdPal.Ext.Indexer.Native;
+
+public sealed partial class NativeMethods
+{
+    [LibraryImport("ole32.dll")]
+    [return: MarshalAs(UnmanagedType.U4)]
+    public static partial uint CoCreateInstance(
+        ref Guid rclsid,
+        IntPtr pUnkOuter,
+        uint dwClsContext,
+        ref Guid riid,
+        out IntPtr rReturnedComObject);
+
+    [LibraryImport("SHELL32.dll", EntryPoint = "ShellExecuteExW", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static partial bool ShellExecuteEx(ref SHELLEXECUTEINFOW lpExecInfo);
+
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+    public struct SHELLEXECUTEINFOW
+    {
+        public uint cbSize;
+        public uint fMask;
+        public IntPtr hwnd;
+
+        public IntPtr lpVerb;
+        public IntPtr lpFile;
+        public IntPtr lpParameters;
+        public IntPtr lpDirectory;
+        public int nShow;
+        public IntPtr hInstApp;
+        public IntPtr lpIDList;
+        public IntPtr lpClass;
+        public IntPtr hkeyClass;
+        public uint dwHotKey;
+        public IntPtr hIconOrMonitor;
+        public IntPtr hProcess;
+    }
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/NativeMethods.json

@@ -0,0 +1,6 @@
+{
+  "$schema": "https://aka.ms/CsWin32.schema.json",
+  "allowMarshaling": false,
+  "emitSingleFile": false,
+  "public": true
+}

src/modules/cmdpal/ext/Microsoft.CmdPal.Ext.Indexer/NativeMethods.txt

@@ -1,11 +1,2 @@
 DBID
 SHOW_WINDOW_CMD
-CoCreateInstance
-GetErrorInfo
-ICommandText
-IDBCreateCommand
-IDBCreateSession
-IDBInitialize
-IGetRow
-IPropertyStore
-ShellExecuteEx