Currently have two physical 2003 DC's, both run internal DNS and one runs DHCP. I've prepped the domain for 2008 and added a virtual 2008 DC a few months back, installing DNS and testing since then with no issues. I would now like to decommission the old 2003 DC that runs DNS at this point. After the first old DC is decomissioned, I have new hardware that I will then build up as the second 2008 DC (running DNS and DHCP) and then take the other 2003 offline.....What's the best way to shut down this first old 2003 DC/DNS server? Is there anything in Exchange(2003) that points to a certain DC?