Moving User Accounts

Go to this link

http://www.microsoft.com/TechNet/win2000/win2ksrv/technote/admtool.asp

This will help in the process.

Good Luck!

If you are planning to migrate just the users into a second Windows 2000 Active Directory domain then use the Active Directory Migration Tool. It is downloadable at the following link

http://www.microsoft.com/DirectAccess/Products/win2000.svr/0129admt.asp

I have performed ten or so migrations and they have all worked seamlessly. You can copy all your users from Windows NT 4 to Active Directory so long as you take care to set up properly. The help menu of this utility does an excellent jobexplaining the procedure. Just be sure to cover all the issues but if you mess up the old domain is still there so no harm done.

If you want to upgrade the Windows NT 4 domain into a Windows 2000 domain just pop the Windows 2000 Server CD into the drive and answer the wizard's questions. Most upgrades are pretty effective. Make sure you familiarize yourself with Active Directory first though as the naming, etc is quite different.

The worst issue I ran into occurs if you don't change the NT4 server's hostname before upgrading. Make sure you go to TCP/IP properties on the DNS tab. Fill in both the hostname and the domain at the top of the dialog box. These are the same names you will need to use for the Active Directory domain or DNS will work poorly and YOU WILL LOSE EVERYTHING. The domain name must be a . name (eg. home.local) because ActiveDirectory will not let you use a smaller name.

If you have more than one server you need to be aware of some issues. Upgrade the PDC of the domain first completely. Then upgrade each BDC completely.

My suggestion is that you read about this process thoroughly on the Microsoft site before attempting it. It is quite possible to lose everything if you don't migrate correctly.