I recently installed 2 new domain controllers running on Windows Server 2003 to replace 2 old DCs running W2K. After running ADPrep /forestprep on the schema master and ADprep /domainprep on the Infra master, I installed AD on the 2 W2K3 servers. I then transferred all FSMO roles to the 2 new DCs, including global catalog. I uninstalled AD on one W2K DC and retained it as DSN and WINS server. Waited a day and no hiccups. After uninstalling AD on the second W2K DC, my Exchange 2000 server (member server) stopped responding. I rebooted the Exchange box and services will not start.
I immediately re-installed AD on the old box and everything was fine again. How can I remove the old W2K DC without crashing Exchange 2000? We want to raise domain functional level to 2003 and we can't do that with W2K DC still running.
Thank you in advance.
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