I tried installing Exchange Server 2007 on WIndows 2008 Beta 3 and Exchange won't recognize Powershell (nor could I install Powershell). Any ideas?

I don't believe that Exchange 2007 is supported on Windows Server 2008 until SP1 of Exchange. Up for release later this year I believe.

Seems you are right! That's a lot of work for nothing. Any idea on how long till SP1 release? I really want to get comfortable with 2008 and test it, would have been nice with exchange, but will have to wait.

SP1 for Exchange is in TAP right now, so by the end of the year maybe. You could always download the 32-bit version and test it on Windows Server 2003.

I have been testing on 2003 for a few months and it works great thuis far. Will have to wiat for 2008 I guess.