Solution: You get his error while installing Exchange 2007 on Windows 2008R2 since Exchange 2007 is not yet supported on Windows 2008R2 with the exception of Exchange 2007 with SP3. This issue can be easily bypassed running the setup.exe in vista32 compatibility mode.

Tags: 3221684229, compatibility mode, Exchange 2007, Exchange 2007 with SP3, Installation, Windows 2008
Categories: Microsoft Exchange