Dunno about that. Don't have the SDK installed. Comes with Visual Studio anyway.
Download details: Microsoft Windows SDK for Windows 7 and .NET Framework 3.5 SP1
(Accent added for clarity)The Windows SDK for Windows 7 and .NET Framework 3.5 SP1 provides the documentation, samples, header files, libraries, and tools (including C++ compilers) that you need to develop applications to run on Windows 7 and the .NET Framework 3.5 SP1. To build and run .NET Framework applications, you must have the corresponding version of the .NET Framework installed. This SDK is compatible with Visual StudioŽ 2008, including Visual Studio Express Editions, which are available free of charge.