http://blogs.technet.com/mjmurphy/archive/2008/02/14/windows-vista-sp1-released-to-technet-and-msdn-download-centers.aspxSP1 for Windows Vista has been published to the MSDN/TechNet sites and will be visible as soon as the servers propagate. Available as of this writing on TN at http://technet.microsoft.com/en-us/windowsvista/bb738089.aspx .en-USCommunityServer 2.1 SP1 (Build: 61025.2)