MOSS 2007 and Windows Server 2008 R2 Support
With the RTM release of Windows Server 2008 R2 I have been receiving many questions about what level of support we are providing for Windows Server 2008 R2 and MOSS 2007.
I can confirm that if you have MOSS Service Pack 2 installed, we are supporting Windows Server 2008 R2.
More details can be found here on the SharePoint Team Blog: