Hi all, We have an Exchange 2000 system running on Windows 2000 Advance Server in a Windows 2003 Active Directory environment. I'm planning to do an in-place upgrade from Exchange 2000 to Exchange 2003....do I need to run the forestprep and domainprep commands again before I do the upgrade? And are there any other things I should look out for. Any help is greatly appreciated. Thanks. Regards, chris