diff --git a/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj b/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj
index 1400c10a35..83d5cd93a4 100644
--- a/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj
+++ b/Plugins/Wox.Plugin.CMD/Wox.Plugin.CMD.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.CMD</RootNamespace>
     <AssemblyName>Wox.Plugin.CMD</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -37,10 +37,10 @@
   <ItemGroup>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json">
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="PresentationCore" />
diff --git a/Plugins/Wox.Plugin.CMD/packages.config b/Plugins/Wox.Plugin.CMD/packages.config
index 27ca96abd4..a56b48a806 100644
--- a/Plugins/Wox.Plugin.CMD/packages.config
+++ b/Plugins/Wox.Plugin.CMD/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
-  <package id="WindowsInput" version="0.2.0.0" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
+  <package id="WindowsInput" version="0.2.0.0" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj b/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj
index 1cd71c38f2..88dd34d162 100644
--- a/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj
+++ b/Plugins/Wox.Plugin.Caculator/Wox.Plugin.Caculator.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Caculator</RootNamespace>
     <AssemblyName>Wox.Plugin.Caculator</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
diff --git a/Plugins/Wox.Plugin.Caculator/packages.config b/Plugins/Wox.Plugin.Caculator/packages.config
index 9639b55192..4e151aa36f 100644
--- a/Plugins/Wox.Plugin.Caculator/packages.config
+++ b/Plugins/Wox.Plugin.Caculator/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="YAMP" version="1.4.0" targetFramework="net45" />
+  <package id="YAMP" version="1.4.0" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj b/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj
index dd5366f5f0..81347e2f19 100644
--- a/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj
+++ b/Plugins/Wox.Plugin.Color/Wox.Plugin.Color.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Color</RootNamespace>
     <AssemblyName>Wox.Plugin.Color</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj b/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj
index 414e58b6e9..8735e23d6d 100644
--- a/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj
+++ b/Plugins/Wox.Plugin.ControlPanel/Wox.Plugin.ControlPanel.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.ControlPanel</RootNamespace>
     <AssemblyName>Wox.Plugin.ControlPanel</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj b/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj
index 5c8129d3c9..30cc7ea875 100644
--- a/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj
+++ b/Plugins/Wox.Plugin.Folder/Wox.Plugin.Folder.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Folder</RootNamespace>
     <AssemblyName>Wox.Plugin.Folder</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -35,13 +35,13 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="log4net">
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
-      <Private>True</Private>
+    <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json">
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
-      <Private>True</Private>
+    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.Folder/packages.config b/Plugins/Wox.Plugin.Folder/packages.config
index 7ffe603846..6c533b9f5c 100644
--- a/Plugins/Wox.Plugin.Folder/packages.config
+++ b/Plugins/Wox.Plugin.Folder/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj b/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj
index 20a919cfcf..60d9fcf3d3 100644
--- a/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj
+++ b/Plugins/Wox.Plugin.PluginIndicator/Wox.Plugin.PluginIndicator.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.PluginIndicator</RootNamespace>
     <AssemblyName>Wox.Plugin.PluginIndicator</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj b/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj
index afee4f1712..9a3faefbd1 100644
--- a/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj
+++ b/Plugins/Wox.Plugin.PluginManagement/Wox.Plugin.PluginManagement.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.PluginManagement</RootNamespace>
     <AssemblyName>Wox.Plugin.PluginManagement</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -37,7 +37,7 @@
   <ItemGroup>
     <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
diff --git a/Plugins/Wox.Plugin.PluginManagement/packages.config b/Plugins/Wox.Plugin.PluginManagement/packages.config
index f827ca2442..4185726464 100644
--- a/Plugins/Wox.Plugin.PluginManagement/packages.config
+++ b/Plugins/Wox.Plugin.PluginManagement/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj b/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj
index 9fcb0b2fb0..fe3ac8026f 100644
--- a/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj
+++ b/Plugins/Wox.Plugin.Program/Wox.Plugin.Program.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Program</RootNamespace>
     <AssemblyName>Wox.Plugin.Program</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -35,13 +35,13 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+    <Reference Include="log4net">
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+      <Private>True</Private>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.Program/packages.config b/Plugins/Wox.Plugin.Program/packages.config
index 7ffe603846..6c533b9f5c 100644
--- a/Plugins/Wox.Plugin.Program/packages.config
+++ b/Plugins/Wox.Plugin.Program/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj b/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj
index 7b63bb2a93..7a53c02944 100644
--- a/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj
+++ b/Plugins/Wox.Plugin.Sys/Wox.Plugin.Sys.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Sys</RootNamespace>
     <AssemblyName>Wox.Plugin.Sys</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -37,7 +37,7 @@
   <ItemGroup>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.Sys/packages.config b/Plugins/Wox.Plugin.Sys/packages.config
index 3a86f257e0..7eb67aa24b 100644
--- a/Plugins/Wox.Plugin.Sys/packages.config
+++ b/Plugins/Wox.Plugin.Sys/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj b/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj
index a0511852b9..a35d32f5e1 100644
--- a/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj
+++ b/Plugins/Wox.Plugin.Url/Wox.Plugin.Url.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Url</RootNamespace>
     <AssemblyName>Wox.Plugin.Url</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj b/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj
index 969c9a4984..fbace415a0 100644
--- a/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj
+++ b/Plugins/Wox.Plugin.WebSearch/Wox.Plugin.WebSearch.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.WebSearch</RootNamespace>
     <AssemblyName>Wox.Plugin.WebSearch</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -35,13 +35,13 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="log4net">
-      <HintPath>..\..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
-      <Private>True</Private>
+    <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json">
-      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
-      <Private>True</Private>
+    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Plugins/Wox.Plugin.WebSearch/packages.config b/Plugins/Wox.Plugin.WebSearch/packages.config
index 7ffe603846..6c533b9f5c 100644
--- a/Plugins/Wox.Plugin.WebSearch/packages.config
+++ b/Plugins/Wox.Plugin.WebSearch/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Wox.Core/Wox.Core.csproj b/Wox.Core/Wox.Core.csproj
index 625467663c..de8c22e29c 100644
--- a/Wox.Core/Wox.Core.csproj
+++ b/Wox.Core/Wox.Core.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Core</RootNamespace>
     <AssemblyName>Wox.Core</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -39,9 +39,9 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\packages\SharpZipLib.0.86.0\lib\20\ICSharpCode.SharpZipLib.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json">
-      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
-      <Private>True</Private>
+    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Wox.Core/packages.config b/Wox.Core/packages.config
index 9d8b9ccef9..6311fc40d5 100644
--- a/Wox.Core/packages.config
+++ b/Wox.Core/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
+  <package id="SharpZipLib" version="0.86.0" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Wox.CrashReporter/Wox.CrashReporter.csproj b/Wox.CrashReporter/Wox.CrashReporter.csproj
index 7ee104d81d..beb211fdeb 100644
--- a/Wox.CrashReporter/Wox.CrashReporter.csproj
+++ b/Wox.CrashReporter/Wox.CrashReporter.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.CrashReporter</RootNamespace>
     <AssemblyName>Wox.CrashReporter</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -37,7 +37,7 @@
   <ItemGroup>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+      <HintPath>..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Wox.CrashReporter/packages.config b/Wox.CrashReporter/packages.config
index 3a86f257e0..7eb67aa24b 100644
--- a/Wox.CrashReporter/packages.config
+++ b/Wox.CrashReporter/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Wox.Infrastructure/Wox.Infrastructure.csproj b/Wox.Infrastructure/Wox.Infrastructure.csproj
index b98ca7395f..fdb44026ea 100644
--- a/Wox.Infrastructure/Wox.Infrastructure.csproj
+++ b/Wox.Infrastructure/Wox.Infrastructure.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Infrastructure</RootNamespace>
     <AssemblyName>Wox.Infrastructure</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -37,14 +37,14 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+    <Reference Include="log4net">
+      <HintPath>..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.VisualBasic" />
     <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
diff --git a/Wox.Infrastructure/packages.config b/Wox.Infrastructure/packages.config
index 7ffe603846..6c533b9f5c 100644
--- a/Wox.Infrastructure/packages.config
+++ b/Wox.Infrastructure/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Wox.Test/Wox.Test.csproj b/Wox.Test/Wox.Test.csproj
index 292d679ec6..122f1f9520 100644
--- a/Wox.Test/Wox.Test.csproj
+++ b/Wox.Test/Wox.Test.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Test</RootNamespace>
     <AssemblyName>Wox.Test</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
@@ -35,14 +35,14 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Moq, Version=4.2.1409.1722, Culture=neutral, PublicKeyToken=69f491c39445e920, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Moq.4.2.1409.1722\lib\net40\Moq.dll</HintPath>
-    </Reference>
-    <Reference Include="nunit.framework">
-      <HintPath>..\packages\NUnit.2.6.3\lib\nunit.framework.dll</HintPath>
+    <Reference Include="Moq">
+      <HintPath>..\packages\Moq.4.2.1409.1722\lib\net35\Moq.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="nunit.framework, Version=2.6.3.13283, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\NUnit.2.6.3\lib\nunit.framework.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
diff --git a/Wox.Test/packages.config b/Wox.Test/packages.config
index 89b4f35983..27bc1f3865 100644
--- a/Wox.Test/packages.config
+++ b/Wox.Test/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Moq" version="4.2.1409.1722" targetFramework="net45" />
-  <package id="NUnit" version="2.6.3" targetFramework="net45" />
+  <package id="Moq" version="4.2.1409.1722" targetFramework="net35" />
+  <package id="NUnit" version="2.6.3" targetFramework="net35" />
 </packages>
\ No newline at end of file
diff --git a/Wox/App.config b/Wox/App.config
index 7ff378dcf0..bef03f123f 100644
--- a/Wox/App.config
+++ b/Wox/App.config
@@ -29,4 +29,4 @@
     <!--http://stackoverflow.com/questions/186854/how-to-prevent-an-exception-in-a-background-thread-from-terminating-an-applicati-->
     <legacyUnhandledExceptionPolicy enabled="1"/>
   </runtime>
-<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
+<startup><supportedRuntime version="v2.0.50727"/></startup></configuration>
diff --git a/Wox/Wox.csproj b/Wox/Wox.csproj
index a996b952f1..159ee42067 100644
--- a/Wox/Wox.csproj
+++ b/Wox/Wox.csproj
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox</RootNamespace>
     <AssemblyName>Wox</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <WarningLevel>4</WarningLevel>
@@ -68,19 +68,19 @@
     </Reference>
     <Reference Include="log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\log4net.2.0.3\lib\net40-full\log4net.dll</HintPath>
+      <HintPath>..\packages\log4net.2.0.3\lib\net35-full\log4net.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json">
-      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Newtonsoft.Json.6.0.7\lib\net35\Newtonsoft.Json.dll</HintPath>
+    </Reference>
+    <Reference Include="NHotkey">
+      <HintPath>..\packages\NHotkey.1.1.0.0\lib\NHotkey.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="NHotkey, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\NHotkey.1.1.0.0\lib\NHotkey.dll</HintPath>
-    </Reference>
-    <Reference Include="NHotkey.Wpf, Version=1.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
+    <Reference Include="NHotkey.Wpf">
       <HintPath>..\packages\NHotkey.Wpf.1.1.0.0\lib\NHotkey.Wpf.dll</HintPath>
+      <Private>True</Private>
     </Reference>
     <Reference Include="PresentationFramework.Classic" />
     <Reference Include="PresentationUI, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL" />
diff --git a/Wox/packages.config b/Wox/packages.config
index b46eec7b9c..3db4249dc3 100644
--- a/Wox/packages.config
+++ b/Wox/packages.config
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="InputSimulator" version="1.0.4.0" targetFramework="net45" />
-  <package id="log4net" version="2.0.3" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net45" />
-  <package id="NHotkey" version="1.1.0.0" targetFramework="net45" />
-  <package id="NHotkey.Wpf" version="1.1.0.0" targetFramework="net45" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
+  <package id="InputSimulator" version="1.0.4.0" targetFramework="net35" />
+  <package id="log4net" version="2.0.3" targetFramework="net35" />
+  <package id="Newtonsoft.Json" version="6.0.7" targetFramework="net35" />
+  <package id="NHotkey" version="1.1.0.0" targetFramework="net35" />
+  <package id="NHotkey.Wpf" version="1.1.0.0" targetFramework="net35" />
+  <package id="SharpZipLib" version="0.86.0" targetFramework="net35" />
 </packages>
\ No newline at end of file