I have a small windows 2000 domain controller and want to install 2003 server (new Virtual Box) to eventually replace old VM. I do not (as manuals explain) want to upgrade 2000 DC, can't I just add the 2003 server to the existing 2000 domain, run both in parallel, then promote 2003 and decommission 2000 DC?
Options I see:
1. Join an existing domain (2003DC joining existing 2000 domain)
2. Create a new Child Domain, new Domain Tree, new forest (This does not look like what I want)