Server 2003 sp2 upgrade to Server 2003 R2

I need to upgrade a DC on server 2003 SP2 to r2

- I read that I need to run adprep from the server 2003 r2 disk

- I have another server that is running Server 2008 R2 stardard
- I already ran adprep /forestprep  and //domainprep on the server 2003 SP2

- Do I still have to run the ADPREP for server 2003 R2?
VytisAsked:
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Lee W, MVPConnect With a Mentor Technology and Business Process AdvisorCommented:
If you've already preped for 2008, then you should not need to for 2003 R2.

But, if you did, you would be told and the DCPROMO would fail.
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