I could install Windows XP on it, but that would result in the loss of all the installed applications, some of which no longer have the initial install diskettes.
How can I reduce this system to a simple Win2k workstation or, at the very least, remove its domain controller status so that I can join it to an existing domain?
Demote the domain controller using Dcpromo.exe. See the KB article Q238369.
This was first published in October 2002