diff --git a/Plugins/Wox.Plugin.Program/ShortcutHelper.cs b/Plugins/Wox.Plugin.Program/ShortcutHelper.cs
index 65a5f44530..def9640ede 100644
--- a/Plugins/Wox.Plugin.Program/ShortcutHelper.cs
+++ b/Plugins/Wox.Plugin.Program/ShortcutHelper.cs
@@ -11,20 +11,6 @@ namespace Wox.Plugin.Program
     public class ShortcutHelper
     {
         #region Signatures
-        [DllImport("shfolder.dll", CharSet = CharSet.Auto)]
-        internal static extern int SHGetFolderPath(IntPtr hwndOwner, int nFolder, IntPtr hToken, int dwFlags, StringBuilder lpszPath);
-
-        [Flags()]
-        enum SLGP_FLAGS
-        {
-            /// <summary>Retrieves the standard short (8.3 format) file name</summary>
-            SLGP_SHORTPATH = 0x1,
-            /// <summary>Retrieves the Universal Naming Convention (UNC) path name of the file</summary>
-            SLGP_UNCPRIORITY = 0x2,
-            /// <summary>Retrieves the raw path name. A raw path is something that might not exist and may include environment variables that need to be expanded</summary>
-            SLGP_RAWPATH = 0x4
-        }
-
         [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
         struct WIN32_FIND_DATAW
         {
@@ -42,93 +28,17 @@ namespace Wox.Plugin.Program
             public string cAlternateFileName;
         }
 
-        [Flags()]
-        enum SLR_FLAGS
-        {
-            /// <summary>
-            /// Do not display a dialog box if the link cannot be resolved. When SLR_NO_UI is set,
-            /// the high-order word of fFlags can be set to a time-out value that specifies the
-            /// maximum amount of time to be spent resolving the link. The function returns if the
-            /// link cannot be resolved within the time-out duration. If the high-order word is set
-            /// to zero, the time-out duration will be set to the default value of 3,000 milliseconds
-            /// (3 seconds). To specify a value, set the high word of fFlags to the desired time-out
-            /// duration, in milliseconds.
-            /// </summary>
-            SLR_NO_UI = 0x1,
-            /// <summary>Obsolete and no longer used</summary>
-            SLR_ANY_MATCH = 0x2,
-            /// <summary>If the link object has changed, update its path and list of identifiers.
-            /// If SLR_UPDATE is set, you do not need to call IPersistFile::IsDirty to determine
-            /// whether or not the link object has changed.</summary>
-            SLR_UPDATE = 0x4,
-            /// <summary>Do not update the link information</summary>
-            SLR_NOUPDATE = 0x8,
-            /// <summary>Do not execute the search heuristics</summary>
-            SLR_NOSEARCH = 0x10,
-            /// <summary>Do not use distributed link tracking</summary>
-            SLR_NOTRACK = 0x20,
-            /// <summary>Disable distributed link tracking. By default, distributed link tracking tracks
-            /// removable media across multiple devices based on the volume name. It also uses the
-            /// Universal Naming Convention (UNC) path to track remote file systems whose drive letter
-            /// has changed. Setting SLR_NOLINKINFO disables both types of tracking.</summary>
-            SLR_NOLINKINFO = 0x40,
-            /// <summary>Call the Microsoft Windows Installer</summary>
-            SLR_INVOKE_MSI = 0x80
-        }
-
-
         /// <summary>The IShellLink interface allows Shell links to be created, modified, and resolved</summary>
         [ComImport(), InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("000214F9-0000-0000-C000-000000000046")]
         interface IShellLinkW
         {
             /// <summary>Retrieves the path and file name of a Shell link object</summary>
-            void GetPath([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out WIN32_FIND_DATAW pfd, SLGP_FLAGS fFlags);
-            /// <summary>Retrieves the list of item identifiers for a Shell link object</summary>
-            void GetIDList(out IntPtr ppidl);
-            /// <summary>Sets the pointer to an item identifier list (PIDL) for a Shell link object.</summary>
-            void SetIDList(IntPtr pidl);
-            /// <summary>Retrieves the description string for a Shell link object</summary>
-            void GetDescription([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszName, int cchMaxName);
-            /// <summary>Sets the description for a Shell link object. The description can be any application-defined string</summary>
-            void SetDescription([MarshalAs(UnmanagedType.LPWStr)] string pszName);
-            /// <summary>Retrieves the name of the working directory for a Shell link object</summary>
-            void GetWorkingDirectory([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszDir, int cchMaxPath);
-            /// <summary>Sets the name of the working directory for a Shell link object</summary>
-            void SetWorkingDirectory([MarshalAs(UnmanagedType.LPWStr)] string pszDir);
-            /// <summary>Retrieves the command-line arguments associated with a Shell link object</summary>
-            void GetArguments([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszArgs, int cchMaxPath);
-            /// <summary>Sets the command-line arguments for a Shell link object</summary>
-            void SetArguments([MarshalAs(UnmanagedType.LPWStr)] string pszArgs);
-            /// <summary>Retrieves the hot key for a Shell link object</summary>
-            void GetHotkey(out short pwHotkey);
-            /// <summary>Sets a hot key for a Shell link object</summary>
-            void SetHotkey(short wHotkey);
-            /// <summary>Retrieves the show command for a Shell link object</summary>
-            void GetShowCmd(out int piShowCmd);
-            /// <summary>Sets the show command for a Shell link object. The show command sets the initial show state of the window.</summary>
-            void SetShowCmd(int iShowCmd);
-            /// <summary>Retrieves the location (path and index) of the icon for a Shell link object</summary>
-            void GetIconLocation([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszIconPath,
-                int cchIconPath, out int piIcon);
-            /// <summary>Sets the location (path and index) of the icon for a Shell link object</summary>
-            void SetIconLocation([MarshalAs(UnmanagedType.LPWStr)] string pszIconPath, int iIcon);
-            /// <summary>Sets the relative path to the Shell link object</summary>
-            void SetRelativePath([MarshalAs(UnmanagedType.LPWStr)] string pszPathRel, int dwReserved);
-            /// <summary>Attempts to find the target of a Shell link, even if it has been moved or renamed</summary>
-            void Resolve(IntPtr hwnd, SLR_FLAGS fFlags);
-            /// <summary>Sets the path and file name of a Shell link object</summary>
-            void SetPath([MarshalAs(UnmanagedType.LPWStr)] string pszFile);
-
+            void GetPath([Out(), MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out WIN32_FIND_DATAW pfd, uint fFlags);
         }
 
         [ComImport, Guid("0000010c-0000-0000-c000-000000000046"),
         InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
-        public interface IPersist
-        {
-            [PreserveSig]
-            void GetClassID(out Guid pClassID);
-        }
-
+        public interface IPersist { }
 
         [ComImport, Guid("0000010b-0000-0000-C000-000000000046"),
         InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
@@ -136,21 +46,7 @@ namespace Wox.Plugin.Program
         {
             new void GetClassID(out Guid pClassID);
             [PreserveSig]
-            int IsDirty();
-
-            [PreserveSig]
-            void Load([In, MarshalAs(UnmanagedType.LPWStr)]
-    string pszFileName, uint dwMode);
-
-            [PreserveSig]
-            void Save([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName,
-                [In, MarshalAs(UnmanagedType.Bool)] bool fRemember);
-
-            [PreserveSig]
-            void SaveCompleted([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName);
-
-            [PreserveSig]
-            void GetCurFile([In, MarshalAs(UnmanagedType.LPWStr)] string ppszFileName);
+            void Load([In, MarshalAs(UnmanagedType.LPWStr)] string pszFileName, uint dwMode);
         }
 
         const uint STGM_READ = 0;