I put sr1 on my windows 2003 server and it got half way on and stopped. I tried to remove it no good. I have a domain controller with exchange on it in a limbo stat. The only thing I can think of doing at this point is an in place upgrade with a windows 2003 server sr1 cd. I think I should do a dcpromo on it first then just run the install from the pop up box. It should preserve my current installation of exchange and put sr1 on in the process. Can anyone give me some insight on this?