I am installing Exchange 2007 Beta 2 on a server running windows 2003 x64. I have downloaded and installed RC0 of the Microsot command shell, but the Exchange 2007 installer will not recognize that the Microsoft command shell is installed. Do I need a different version of the command shell or do I need to run a command so that the Exchange installer will recognize that it is installed?

Hi, Are you using the version that is downloaded when you click the link on the Exchange 2007 Setup Splash screen? If so, did you close and restart Setup.exe for Exchange?

Yes I am using version from the link on the Exchange setup screen. I have even tried opening the command shell and running setup, and it gives me an error that the command shell is not installed from within the command shell.

I found the problem, I had installed the x86 version of Monad on an X64 version of Windows.