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Adding a Windows 2003 R2 Server into an existing 2000 Domain with Exchange

Made sure all SP's and fixes are up to date on 2000 exchange/server.  Only server in our environment.  Ran the Inetorgpersonfix.ldf script which ran successfully, the ran adprep /forestprep and /domainprep which both completed sucessfully.  Getting error when trying to add 2003 as a domain controller to the existing forest "The version of active directory schema of the source forest is not compatible with the version of AD on this computer."

Referenced Articles Q325379, Q285172, Q314649 among others to no avail.

1 Solution
Remove all AD from your 3002 server using dcpromo.

Then use dcpromo to add it to your existing AD

You're trying to combine two separate AD infrastructures, you just want to add a new server to your existing AD.

there should be an updated ADPrep/forestprep /domainprep that will have the appropriate schema updates,

try here


Good Luck,

WebccAuthor Commented:
AD is not currently loaded on our 2003 server, it has been added as a member server.

Used adprep from the W2K3 R2 CD to update and extend schema on our 2000 server.
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Hi Webcc,

did you run the adprep /gpprep tool as well from the R2 Cd?

try it from the download here
WebccAuthor Commented:
Thanks Stafi!!!!

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