I'm working on a test where i gone upgrade a nt4 domain to win2k3srv. When i did this on 2k srv ms had some great tut's on how to do this. For how to do this on win2k3srv i havent found any good information. So far i just have papers on how to move dns and catalog server to the new server. The way this upgrade gone be done is, i install a new nt4.0 to the old domain, promote it to pdc, remove an updated bdc from the network, then upgrade the PDC to win2k3srv. When this is done i gone install a new server to be "domain first server" but i havent found any information about what i have to remove/move from the server i upgrade from nt4 to 2k3 before i can remove it. Hoping for a quick answer... MrOnline....