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Migration from Win2003 to Win2008 Forest/Domain

By JBMznet ·
We are currently running a Win2003 Forest (no sub domains) and are planning to upgrade to a Win2008 Forest. Can Windows 2003 domain controllers exsist in a Windows 2008 R2 Forest Domain? Or will we have to upgrade ALL Windows 2003 Domain Controllers to 64-bit Windows 2008 R2 DC's?

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you can have 2003 on 2008 domain and 2008 on 2003 domain

by CG IT In reply to Migration from Win2003 to ...

just have to run addprep/forest prep and addprep/domainprep

see Microsoft technet

http://technet.microsoft.com/en-us/library/cc754670(WS.10).aspx

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ADMT 3.2 or higher !

by Master_Key In reply to Migration from Win2003 to ...

Active Directory Migration Tool can do that painless , but you have to read the guidelines carefully : http://www.microsoft.com/downloads/details.aspx?familyid=6D710919-1BA5-41CA-B2F3-C11BCB4857AF&displaylang=en

If you don't want headache? try non MS tools that can do that , there was one very good but I don't remember it , and I guess for best compatibility with file permissions and users roaming profiles , use the ADMT !

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