I have a Windows NT 4.0 PDC.
I also have an Exchange 5.5 Server running on Windows 2000 Server.
If I upgrade the PDC from 4.0 to Windows 2003 server (which will use AD), will the Exchange server still run?
(I will eventually upgrade the Exchange server to Windows 2003 Server / Exchange 2003, but I'd rather do that at a later time. However, I'm worried that after the PDC is upgraded to Windows 2003 Server, the Exchange Server won't work until it's upgraded.)