http://blogs.technet.com/fabricem_blogs/archive/2008/10/10/support-policy-for-microsoft-sql-server-products-that-are-running-in-a-hardware-virtualization-environment.aspxMicrosoft provides technical support for SQL Server 2005 and for SQL Server 2008 that are running in the following hardware virtualization environments: • Windows Server 2008 with Hyper-V • Microsoft Hyper-V Server 2008 • Configurations that are certifiedfrCommunityServer 2.1 SP1 (Build: 61025.2)