I know that Exchange 2007 is not supported (yet) installed on Server 2008 R2. But that isnt the issue when I was running the Exbpa in my lab messing with a few things I have two AD sites.1st AD site is Server 2008 SP2 - DC,GC,DNS2nd AD site is Server 2008 R2 - DC,GC,DNSNow I have Exchange 2003 servers in both those sites working without any issues, but I was suprised to see the Exbpa kick an errors saying Site 2 doesnt have an GC later than Server 2003 SP1.So is this going to be a problem and why wouldnt 2008 R2 GC/DC work? That AD site was setup for specifically for running PowerShell V2 AD cmdlets, and some other Exchange test.Thanks

Hi, Please check following two articles: Exchange 2007 SP2 Setup fails if all domain controllers are running Windows Server 2008 R2 http://msexchangeteam.com/archive/2009/09/02/452284.aspx The fix for installation of Exchange 2007 SP2 with Windows 2008 R2 Domain Controllers is now available. http://msexchangeteam.com/archive/2009/09/15/452494.aspx Mike Shen TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

that's what i was looking for, odd my bing/google search didnt bring up the MS team blog.... I read that article when it first occurred but for some reason completely forgot about it. BTW will this apply to Exchange 2007 SP1? That is for SP2, which I'm going to upgrade to in a few weeks, but starting at SP1 for a reason. Thanks