http://blogs.msdn.com/windowssdk/archive/2008/02/01/troubleshooting-uninstall-sdk-components.aspxThis article applies to the Windows SDK for Windows Vista , the Windows SDK for Windows Vista Update , and the Windows SDK for Windows Server 2008 (a pre-release SDK at the time this post was written). The Windows SDK installs both SDK-core componentsenCommunityServer 2.1 SP1 (Build: 61025.2)