How do I move only some Win NT 4.0 accounts to a new Win 2000 domain?
How do I move only some Win NT 4.0 users' accounts to a new Windows 2000 domain, while some accounts remain in Win NT 4.0?
There's a product called Aelita Domain Migration Wizard that can perform complicated migration tasks such as selectively migrating groups or individual users, consolidating users among multiple domains, and so on. You can find out more about the product here: http://wm.quest.com/products/domainmigrationwizard/
Microsoft also has an on-line book about domain migration that covers this exact territory as well, which can be read here: http://www.microsoft.com/technet/prodtechnol/windows2000serv/deploy/cookbook/default.mspx.
This was first published in August 2004