http://blogs.technet.com/b/chitpro-en/archive/2009/04/26/windows-7-release-candidate-availability.aspxWindows 7 RC and Windows Server 2008 R2 RC (builds 7100) will be made available for download to TechNet and MSDN subscribers on 30 April 2009 and on 5 May 2009, will be available for general download. Just remember, unless you download it from Microsoften-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)