Index: nuget/src/Core/Core.csproj
===================================================================
--- nuget.orig/src/Core/Core.csproj
+++ nuget/src/Core/Core.csproj
@@ -9,7 +9,7 @@
     <AssemblyName>NuGet.Core</AssemblyName>
     <CodeAnalysisRuleSet>..\..\NuGet.ruleset</CodeAnalysisRuleSet>
     <RunCodeAnalysis Condition="'$(EnableCodeAnalysis)'=='true'">true</RunCodeAnalysis>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <TargetFrameworkProfile Condition=" '$(MonoBuild)' == '' And '$(TargetFrameworkVersion)' == 'v4.0' "></TargetFrameworkProfile>
     <PlatformTarget>AnyCPU</PlatformTarget>
   </PropertyGroup>
@@ -323,4 +323,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
+</Project>
Index: nuget/xdt/Microsoft.Web.XmlTransform.Test/Microsoft.Web.XmlTransform.Test.csproj
===================================================================
--- nuget.orig/xdt/Microsoft.Web.XmlTransform.Test/Microsoft.Web.XmlTransform.Test.csproj
+++ nuget/xdt/Microsoft.Web.XmlTransform.Test/Microsoft.Web.XmlTransform.Test.csproj
@@ -20,7 +20,7 @@
   <!--If we have no common settings file, let us set up each individual property here -->
   <PropertyGroup Condition="!$(ExtensionsCommonTargetsExists)">
     <AppDesignerFolder>Properties</AppDesignerFolder>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU' AND !$(ExtensionsCommonTargetsExists)">
     <DebugSymbols>true</DebugSymbols>
@@ -100,4 +100,4 @@
     <!--The project will go open source, so running PoliCheck is mandatory-->
     <PolicheckTask RootDirectory="$(ExtensionsRoot)" Directories="$(ProjectDir)" Severities="1|2" ContinueOnError="false" Condition="$(RunPoliCheckOnBuild)=='true'" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>
Index: nuget/xdt/XmlTransform/Microsoft.Web.XmlTransform.csproj
===================================================================
--- nuget.orig/xdt/XmlTransform/Microsoft.Web.XmlTransform.csproj
+++ nuget/xdt/XmlTransform/Microsoft.Web.XmlTransform.csproj
@@ -15,7 +15,7 @@
   <!--If we have no common settings file, let us set up each individual property here -->
   <PropertyGroup Condition="!$(ExtensionsCommonTargetsExists)">
     <AppDesignerFolder>Properties</AppDesignerFolder>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU' AND !$(ExtensionsCommonTargetsExists)">
     <DebugSymbols>true</DebugSymbols>
@@ -102,4 +102,4 @@
     <!--The project will go open source, so running PoliCheck is mandatory-->
     <PolicheckTask RootDirectory="$(ExtensionsRoot)" Directories="$(ProjectDir)" Severities="1|2" ContinueOnError="false" Condition="$(RunPoliCheckOnBuild)=='true'" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>
Index: nuget/Build/NuGet.Settings.targets
===================================================================
--- nuget.orig/Build/NuGet.Settings.targets
+++ nuget/Build/NuGet.Settings.targets
@@ -53,7 +53,7 @@
     </PropertyGroup>
 
     <PropertyGroup Condition=" $(VisualStudioVersion) == '10.0' ">
-        <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+        <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
         <ComponentHostAssembly>Microsoft.VisualStudio.ComponentModelHost, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</ComponentHostAssembly>
         <ExtensionManagerAssembly>Microsoft.VisualStudio.ExtensionManager, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL</ExtensionManagerAssembly>
         <ExtensionsExplorerAssembly>Microsoft.VisualStudio.ExtensionsExplorer, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL</ExtensionsExplorerAssembly>
