Minimum Functional Level for 2008 Domain Controller

Posted on 2009-02-09
Last Modified: 2012-05-06
I am looking to bring a Windows 2008 Server in as a DC.  I've gone through most of the research and understand updating the forest and domain schema to prepare for a 2008 DC.  The existing forest / domain is at Windows 2000, mixed mode.  Can I bring a Windows 2008 Domain Controller in a 2000 Mixed mode domain without increasing the level to 2000 Native?  There are no plans for read-only DC's.  We will be migrating from all 2000 to a mix of 2000, 2003, and 2008 domain controllers, with the final result being all 2008 domain controllers (~15 of them)

Thanks in Advance!
Question by:DenverDan
    1 Comment
    LVL 1

    Accepted Solution

    Here is the answer to the question.  It was discovered in a test environment that you can update the forest schema, but cant update the domain schema unless the domain is in 2000 Native mode.  
    To bring a Windows Server 2008 Domain Controller into a 2000 Domain, it must be in Native mode!

    Thanks for all the great responses!  Your help is greatly appreciated!!



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