Fortunately for Microsoft there was a lot of excitement around the prereleases of Exchange 2007 Beta 2, and many of us liked it so much more than Exchange 2003 or our previous solutions that we upgraded to it early.  Luckily for all of us who did this, Microsoft left a way for us to get our Beta 2 configuration up to RTM.

On December 24, when I wanted to move my test machine over from Beta 2 to RTM I had to make a decision. The choices were that I could format the hard drive and reinstall Windows 2003 R2 x64 and Exchange 2007 RTM, or I could just upgrade to the RTM version.  Upgrade’s are always less desirable and in this case completely unsupported by Microsoft for a production environment.  In my case though, this was just for a testing environment and I was in a hurry to get to RTM since I was tired of some of the bugs in my Beta 2 configuration.  This was the process that I used which worked well for me:

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