Here is my scenario. I have 2 locations, (A and B). Each site has a Windows 2000 exchange server and a Windows 2000 Domain Controller. They are connected VIA site-to-site VPN. I have a new Windows 2003 server that i have added to the domain. (And also, a new Windows 2003 Exchange server to add as well.) I want to make it a Domain Controller. i run DCPromo on the Windows 2003 server and get the following error:
"The active Directory Installation Wizard cannot continue because the forest is not prepared for installing Windows Server 2003. Use Adprep command-line tool to prepare both the forest and the domain. For more information about using Adprep, see Active Directory Help.
The version of the Active Directory schema of the source forest is not compatible with the version of Active Directory on this computer."
My question is this, which version of adprep and forest prep do i run? From the Windows2003 server disk i presume. Correct? And do i run it on ALL windows 2000 servers, or just the DC's and the FSMO role holders?
Also, will this change ANY properties or settings in the current Windows 2000 active directory? Will users still be able to login, after this is completed?