File list (Check if you may need any files):
calc\AssemblyInfo.cs
....\Backup\AssemblyInfo.cs
....\......\calc.csproj
....\......\calc.csproj.user
....\......\calc.sln
....\......\calc.v12.suo
....\......\Form1.cs
....\......\Form1.resx
....\......\licenses.licx
....\bin\Debug\calc.exe
....\...\.....\calc.pdb
....\...\.....\calc.vshost.exe
....\...\.....\calc.vshost.exe.manifest
....\calc.csproj
....\calc.csproj.user
....\calc.sln
....\calc.suo
....\calc.v12.suo
....\Form1.cs
....\Form1.resx
....\licenses.licx
....\obj\Debug\calc.Calculator1.resources
....\...\.....\calc.csproj.FileListAbsolute.txt
....\...\.....\calc.csproj.GenerateResource.Cache
....\...\.....\calc.csprojResolveAssemblyReference.cache
....\...\.....\calc.exe
....\...\.....\calc.exe.incr
....\...\.....\calc.exe.licenses
....\...\.....\calc.pdb
....\...\.....\calc.projdata
....\...\.....\DesignTimeResolveAssemblyReferences.cache
....\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
....\UpgradeLog.htm
....\obj\Debug\temp
....\...\.....\TempPE
....\bin\Debug
....\obj\Debug
....\Backup
....\bin
....\obj
calc