diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Toprie.csproj b/Windows/CS/Framework4.0/Toprie/Toprie/Toprie.csproj
index 9dbec0a..41ab994 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Toprie.csproj
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Toprie.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
@@ -75,6 +75,12 @@
       <DependentUpon>Camera.cs</DependentUpon>
     </Compile>
     <Compile Include="DeviceManager.cs" />
+    <Compile Include="preview.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="preview.Designer.cs">
+      <DependentUpon>preview.cs</DependentUpon>
+    </Compile>
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Properties\Resources.Designer.cs">
       <AutoGen>True</AutoGen>
@@ -97,6 +103,9 @@
     <EmbeddedResource Include="Camera.resx">
       <DependentUpon>Camera.cs</DependentUpon>
     </EmbeddedResource>
+    <EmbeddedResource Include="preview.resx">
+      <DependentUpon>preview.cs</DependentUpon>
+    </EmbeddedResource>
     <EmbeddedResource Include="Properties\Resources.resx">
       <Generator>ResXFileCodeGenerator</Generator>
       <LastGenOutput>Resources.Designer.cs</LastGenOutput>