Three updates I apply in a Hyper-V/VMM labhttp://blogs.technet.com/migreene/archive/2009/03/04/3206133.aspxThis resolves the Hyper-V status warning message in VMM. http://www.microsoft.com/downloads/details.aspx?FamilyID=fd44b4e3-2dcc-4299-b345-bc09a9a37b60&displaylang=en This resolves an issue when using BITS to transfer to/from volumes mounted by GUID.en-USCommunityServer 2.1 SP1 (Build: 61025.2)