Trying to Install Exchange 2007 64Bit on Win2K8-64Bit Ent...Full..Installn...but not happening.It's giving error of this O.S is not supported..Can any one help us to resolve this issue.Much appreiciated.RegardsAnand S

Are you trying to install Exchange 2007 on Windows 2008 R2? If so, R2 is not supported for the time being. You have to use either Windows 2003 or Windows 2008. MCTS: Messaging | MCSE: S+M | Small Business Specialist

The RTM version of Exchange Server 2007 is not supported on Windows Server 2008. Exchange 2007 SP1 can be installed on Windows Server 2008. You can check this article from the Exchange Team: http://msexchangeteam.com/archive/2007/08/16/446709.aspxElie B. MCITP: EMEA|EA|SA Blog: http://blog.elieb.info