diff --git a/samples/CSharp/CSharp-vc10.sln b/samples/CSharp/CSharp-vc10.sln
new file mode 100644
index 0000000000..cefb3f1069
--- /dev/null
+++ b/samples/CSharp/CSharp-vc10.sln
@@ -0,0 +1,45 @@
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IE_WPF", "WPF\IE_WPF.csproj", "{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IE_WinForms", "WinForms\IE_WinForms.csproj", "{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "OCCTProxy", "OCCTProxy\OCCTProxy.vcxproj", "{969912D9-78E7-4AB8-B4FF-6B52B4F03991}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Debug|Win32.ActiveCfg = Debug|x86
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Debug|Win32.Build.0 = Debug|x86
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Debug|x64.ActiveCfg = Debug|x64
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Debug|x64.Build.0 = Debug|x64
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Release|Win32.ActiveCfg = Release|x86
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Release|Win32.Build.0 = Release|x86
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Release|x64.ActiveCfg = Release|x64
+		{D12A8897-5BF8-4345-BBB0-8ADE4B9FB9A7}.Release|x64.Build.0 = Release|x64
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Debug|Win32.ActiveCfg = Debug|x86
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Debug|Win32.Build.0 = Debug|x86
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Debug|x64.ActiveCfg = Debug|x64
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Debug|x64.Build.0 = Debug|x64
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Release|Win32.ActiveCfg = Release|x86
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Release|Win32.Build.0 = Release|x86
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Release|x64.ActiveCfg = Release|x64
+		{B9914BB3-B886-4B41-B48D-350EBEBEFD1F}.Release|x64.Build.0 = Release|x64
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Debug|Win32.ActiveCfg = Debug|Win32
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Debug|Win32.Build.0 = Debug|Win32
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Debug|x64.ActiveCfg = Debug|x64
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Debug|x64.Build.0 = Debug|x64
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Release|Win32.ActiveCfg = Release|Win32
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Release|Win32.Build.0 = Release|Win32
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Release|x64.ActiveCfg = Release|x64
+		{969912D9-78E7-4AB8-B4FF-6B52B4F03991}.Release|x64.Build.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/samples/CSharp/CSharp.sln b/samples/CSharp/CSharp-vc9.sln
similarity index 100%
rename from samples/CSharp/CSharp.sln
rename to samples/CSharp/CSharp-vc9.sln
diff --git a/samples/CSharp/OCCTProxy/OCCTProxy.vcxproj b/samples/CSharp/OCCTProxy/OCCTProxy.vcxproj
new file mode 100644
index 0000000000..91100d2960
--- /dev/null
+++ b/samples/CSharp/OCCTProxy/OCCTProxy.vcxproj
@@ -0,0 +1,198 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{969912D9-78E7-4AB8-B4FF-6B52B4F03991}</ProjectGuid>
+    <RootNamespace>OCCTProxy</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <CLRSupport>true</CLRSupport>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <CLRSupport>true</CLRSupport>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <CLRSupport>true</CLRSupport>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <CharacterSet>MultiByte</CharacterSet>
+    <CLRSupport>true</CLRSupport>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.40219.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">..\win32\bind\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">obj\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">..\win64\bind\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">obj\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</LinkIncremental>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\win32\bin\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">obj\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\win64\bin\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">obj\$(Platform)\$(Configuration)\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkIncremental>
+    <IncludePath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">D:\builds\vc10\CR25067-master-occt\inc;$(IncludePath)</IncludePath>
+    <LibraryPath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">D:\builds\vc10\CR25067-master-occt\win32\vc10\lib;$(LibraryPath)</LibraryPath>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\OCC\;$(CSF_OPT_INC);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WNT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <OutputFile>$(OutDir)OCCTProxy.dll</OutputFile>
+      <AdditionalLibraryDirectories>$(CSF_OPT_LIB32D);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AssemblyDebug>true</AssemblyDebug>
+      <ProgramDatabaseFile>$(OutDir)OCCTProxy.pdb</ProgramDatabaseFile>
+      <SubSystem>Windows</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <ImportLibrary>$(OutDir)OCCTProxy.lib</ImportLibrary>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Midl>
+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\OCC\;$(CSF_OPT_INC);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WNT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <OutputFile>$(OutDir)OCCTProxy.dll</OutputFile>
+      <AdditionalLibraryDirectories>$(CSF_OPT_LIB64D);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AssemblyDebug>true</AssemblyDebug>
+      <ProgramDatabaseFile>$(OutDir)OCCTProxy.pdb</ProgramDatabaseFile>
+      <SubSystem>Windows</SubSystem>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <ImportLibrary>$(OutDir)OCCTProxy.lib</ImportLibrary>
+      <TargetMachine>MachineX64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <AdditionalIncludeDirectories>..\OCC\;$(CSF_OPT_INC);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WNT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <OutputFile>$(OutDir)OCCTProxy.dll</OutputFile>
+      <AdditionalLibraryDirectories>$(CSF_OPT_LIB32);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <ImportLibrary>$(OutDir)OCCTProxy.lib</ImportLibrary>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Midl>
+      <TargetEnvironment>X64</TargetEnvironment>
+    </Midl>
+    <ClCompile>
+      <AdditionalIncludeDirectories>..\OCC\;$(CSF_OPT_INC);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WNT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <OutputFile>$(OutDir)OCCTProxy.dll</OutputFile>
+      <AdditionalLibraryDirectories>$(CSF_OPT_LIB64);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+      <OptimizeReferences>true</OptimizeReferences>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <RandomizedBaseAddress>false</RandomizedBaseAddress>
+      <DataExecutionPrevention>
+      </DataExecutionPrevention>
+      <ImportLibrary>$(OutDir)OCCTProxy.lib</ImportLibrary>
+      <TargetMachine>MachineX64</TargetMachine>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="OCCTProxy.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/CSharp/WPF/IE_WPF.csproj b/samples/CSharp/WPF/IE_WPF.csproj
index 48a7f129d1..2aa78ada10 100644
--- a/samples/CSharp/WPF/IE_WPF.csproj
+++ b/samples/CSharp/WPF/IE_WPF.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -10,11 +10,16 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>IE_WPF</RootNamespace>
     <AssemblyName>IE_WPF</AssemblyName>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <WarningLevel>4</WarningLevel>
     <ExpressionBlendVersion>3.0.1927.0</ExpressionBlendVersion>
+    <FileUpgradeFlags>
+    </FileUpgradeFlags>
+    <OldToolsVersion>3.5</OldToolsVersion>
+    <UpgradeBackupLocation />
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -72,6 +77,7 @@
     </Reference>
     <Reference Include="System.Drawing" />
     <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xaml" />
     <Reference Include="System.Xml.Linq">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
@@ -100,22 +106,32 @@
     <ApplicationDefinition Include="App.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Page Include="About.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Page Include="MaterialDlg.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Page Include="Simple Styles.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Page Include="MainWindow.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
     </Page>
     <Compile Include="App.xaml.cs">
       <DependentUpon>App.xaml</DependentUpon>
@@ -160,6 +176,7 @@
     <EmbeddedResource Include="TransparencyDialog.resx">
       <DependentUpon>TransparencyDialog.cs</DependentUpon>
     </EmbeddedResource>
+    <None Include="app.config" />
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
@@ -198,7 +215,7 @@
     <Resource Include="res\occ_logo.bmp" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\OCCTProxy\OCCTProxy.vcproj">
+    <ProjectReference Include="..\OCCTProxy\OCCTProxy.vcxproj">
       <Project>{969912D9-78E7-4AB8-B4FF-6B52B4F03991}</Project>
       <Name>OCCTProxy</Name>
     </ProjectReference>
diff --git a/samples/CSharp/WPF/app.config b/samples/CSharp/WPF/app.config
new file mode 100644
index 0000000000..e365603337
--- /dev/null
+++ b/samples/CSharp/WPF/app.config
@@ -0,0 +1,3 @@
+<?xml version="1.0"?>
+<configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
diff --git a/samples/CSharp/WinForms/IE_WinForms.csproj b/samples/CSharp/WinForms/IE_WinForms.csproj
index 56f03f2c8c..41a68fa0b0 100644
--- a/samples/CSharp/WinForms/IE_WinForms.csproj
+++ b/samples/CSharp/WinForms/IE_WinForms.csproj
@@ -1,4 +1,5 @@
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="3.5">
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
   <PropertyGroup>
     <ProjectType>Local</ProjectType>
     <ProductVersion>9.0.30729</ProductVersion>
@@ -25,8 +26,24 @@
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
-    <OldToolsVersion>2.0</OldToolsVersion>
+    <OldToolsVersion>3.5</OldToolsVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkProfile />
+    <PublishUrl>publish\</PublishUrl>
+    <Install>true</Install>
+    <InstallFrom>Disk</InstallFrom>
+    <UpdateEnabled>false</UpdateEnabled>
+    <UpdateMode>Foreground</UpdateMode>
+    <UpdateInterval>7</UpdateInterval>
+    <UpdateIntervalUnits>Days</UpdateIntervalUnits>
+    <UpdatePeriodically>false</UpdatePeriodically>
+    <UpdateRequired>false</UpdateRequired>
+    <MapFileExtensions>true</MapFileExtensions>
     <ApplicationRevision>0</ApplicationRevision>
+    <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
+    <IsWebBootstrapper>false</IsWebBootstrapper>
+    <UseApplicationTrust>false</UseApplicationTrust>
+    <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <OutputPath>bin\Debug\</OutputPath>
@@ -128,6 +145,7 @@
     <Reference Include="System.Drawing">
       <Name>System.Drawing</Name>
     </Reference>
+    <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Windows.Forms">
       <Name>System.Windows.Forms</Name>
     </Reference>
@@ -178,11 +196,33 @@
     <Content Include="App.ico" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\OCCTProxy\OCCTProxy.vcproj">
+    <ProjectReference Include="..\OCCTProxy\OCCTProxy.vcxproj">
       <Project>{969912D9-78E7-4AB8-B4FF-6B52B4F03991}</Project>
       <Name>OCCTProxy</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <BootstrapperPackage Include=".NETFramework,Version=v4.0">
+      <Visible>False</Visible>
+      <ProductName>Microsoft .NET Framework 4 %28x86 and x64%29</ProductName>
+      <Install>true</Install>
+    </BootstrapperPackage>
+    <BootstrapperPackage Include="Microsoft.Net.Client.3.5">
+      <Visible>False</Visible>
+      <ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName>
+      <Install>false</Install>
+    </BootstrapperPackage>
+    <BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
+      <Visible>False</Visible>
+      <ProductName>.NET Framework 3.5 SP1</ProductName>
+      <Install>false</Install>
+    </BootstrapperPackage>
+    <BootstrapperPackage Include="Microsoft.Windows.Installer.3.1">
+      <Visible>False</Visible>
+      <ProductName>Windows Installer 3.1</ProductName>
+      <Install>true</Install>
+    </BootstrapperPackage>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
     <PreBuildEvent>
diff --git a/samples/CSharp/WinForms/app.config b/samples/CSharp/WinForms/app.config
index 84a1af5451..cb021ce515 100644
--- a/samples/CSharp/WinForms/app.config
+++ b/samples/CSharp/WinForms/app.config
@@ -1,38 +1,38 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0"?>
 <configuration>
   <appSettings>
     <!--   User application and configured property settings go here.-->
     <!--   Example: <add key="settingName" value="settingValue"/> -->
-    <add key="New.Visible" value="True" />
-    <add key="About.Visible" value="True" />
-    <add key="delete.Enabled" value="False" />
-    <add key="delete.Visible" value="False" />
-    <add key="transparency.Enabled" value="False" />
-    <add key="transparency.Visible" value="False" />
-    <add key="marerial.Enabled" value="False" />
-    <add key="marerial.Visible" value="True" />
-    <add key="color.Enabled" value="False" />
-    <add key="color.Visible" value="False" />
-    <add key="shading.Enabled" value="False" />
-    <add key="shading.Pushed" value="False" />
-    <add key="shading.Visible" value="False" />
-    <add key="wireframe.Enabled" value="False" />
-    <add key="wireframe.Pushed" value="False" />
-    <add key="wireframe.Visible" value="False" />
-    <add key="material.Enabled" value="False" />
-    <add key="material.Visible" value="False" />
-    <add key="ClientSettingsProvider.ServiceUri" value="" />
+    <add key="New.Visible" value="True"/>
+    <add key="About.Visible" value="True"/>
+    <add key="delete.Enabled" value="False"/>
+    <add key="delete.Visible" value="False"/>
+    <add key="transparency.Enabled" value="False"/>
+    <add key="transparency.Visible" value="False"/>
+    <add key="marerial.Enabled" value="False"/>
+    <add key="marerial.Visible" value="True"/>
+    <add key="color.Enabled" value="False"/>
+    <add key="color.Visible" value="False"/>
+    <add key="shading.Enabled" value="False"/>
+    <add key="shading.Pushed" value="False"/>
+    <add key="shading.Visible" value="False"/>
+    <add key="wireframe.Enabled" value="False"/>
+    <add key="wireframe.Pushed" value="False"/>
+    <add key="wireframe.Visible" value="False"/>
+    <add key="material.Enabled" value="False"/>
+    <add key="material.Visible" value="False"/>
+    <add key="ClientSettingsProvider.ServiceUri" value=""/>
   </appSettings>
   <system.web>
     <membership defaultProvider="ClientAuthenticationMembershipProvider">
       <providers>
-        <add name="ClientAuthenticationMembershipProvider" type="System.Web.ClientServices.Providers.ClientFormsAuthenticationMembershipProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" />
+        <add name="ClientAuthenticationMembershipProvider" type="System.Web.ClientServices.Providers.ClientFormsAuthenticationMembershipProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri=""/>
       </providers>
     </membership>
     <roleManager defaultProvider="ClientRoleProvider" enabled="true">
       <providers>
-        <add name="ClientRoleProvider" type="System.Web.ClientServices.Providers.ClientRoleProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" cacheTimeout="86400" />
+        <add name="ClientRoleProvider" type="System.Web.ClientServices.Providers.ClientRoleProvider, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" serviceUri="" cacheTimeout="86400"/>
       </providers>
     </roleManager>
   </system.web>
-</configuration>
\ No newline at end of file
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
diff --git a/samples/CSharp/msvc.bat b/samples/CSharp/msvc.bat
index ce3f0e137a..5232ec7ebe 100644
--- a/samples/CSharp/msvc.bat
+++ b/samples/CSharp/msvc.bat
@@ -1,7 +1,7 @@
 call "%~dp0..\..\env.bat" %1 %2 %3
 
 if ["%CASDEB%"] == [""] (
-  call "%~dp0..\..\msvc.bat" %VCVER% win%ARCH% Release "%~dp0\CSharp.sln"
+  call "%~dp0..\..\msvc.bat" %VCVER% win%ARCH% Release "%~dp0\CSharp-%VCVER%.sln"
 ) else (
-  call "%~dp0..\..\msvc.bat" %VCVER% win%ARCH% Debug "%~dp0\CSharp.sln"
+  call "%~dp0..\..\msvc.bat" %VCVER% win%ARCH% Debug "%~dp0\CSharp-%VCVER%.sln"
 )
\ No newline at end of file