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DCPROMO Win2k3 R2

I have multiple DC's that are running on Windows 2003 Standard SP1.  We just bought our first Server that has Windows 2003 R2 on it.  When I do the DCPROMO I get an error saying that I need to run adprep on that machine to prepare active directory.  Is there anything problems I should know about this before I just run this and update AD?  All of our servers are Windows 2003 Standard SP1 and we also have Exchange 2003.  I am just being cautious before I run this. Thanks.
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j0s3ph
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j0s3ph
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oBdACommented:
There shouldn't be any; you need to run adprep /forestprep from the \CMPNENTS\R2\ADPREP\ folder on the second CD:
Error message when you run the Active Directory Installation Wizard: "The version of the Active Directory schema of the source forest is not compatible with the version of Active Directory on this computer"
http://support.microsoft.com/?kbid=917385
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j0s3phAuthor Commented:
I insert the CD 2 from Windows 2003 R2 in the DC that has Server 2003 Standard (on the DC) correct?  Do you know if it matters if I run it on the DC or the DC w/Exchange installed on it, is there a difference?
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j0s3phAuthor Commented:
Right now we have three Domain Controllers running Server 2003 Standard.  Do I just run this once on one of the DCs and it will convert all of them?
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oBdACommented:
You need to run that (only) on the Schema Master; the account you're using has to be a member of the Schema Admins group.
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j0s3phAuthor Commented:
I should do this adprep /forestprep even though I have Server 2003 Standard?  According to the technet articles this is supposed to be done on a Windows 2000 Server.  Will this have any affect on my Exchange 2003 on my DC or is there anything extra I should do for it. Thanks in advance.
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oBdACommented:
Yes; you have Server 2003, but not Server 2003 R2 (as a DC). No, this should not have any effect on your Exchange server.
Extending Your Active Directory Schema for New Features in Windows Server 2003 R2
http://www.microsoft.com/downloads/details.aspx?familyid=5B73CF03-84DD-480F-98F9-526EC09E9BA8&displaylang=en
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j0s3phAuthor Commented:
oBdA, Things worked out very nicely. Thanks for the links.  I felt better after reading the information first.
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