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I currently have a domain that is 2003 native with 4 domain controllers. All except one domain controller is 2008 R2. <br />
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I also have OCS 2007 installed on 2008R2. The forest prep for OCS was done after the forest prep for 2008. <br />
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That being said, once I replace the last 2003 server with 2008R2 and make the domain 2008 native, will I still have to rerun the OCS forest prep to make sure OCS does not break?<br />
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The article in question is....<br />
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<a href="http://support.microsoft.com/kb/982020/" rel="ugc nofollow">http://support.microsoft.com/kb/982020/</a><br />
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I just want to know if they are talking about the forest prep or the domain actually already being 2008 native or not.
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I currently have a domain that is 2003 native with 4 domain controllers. All except one domain controller is 2008 R2. 

I also have OCS 2007 installed on 2008R2. The forest prep for OCS was done after the forest prep for 2008. 

That being said, once I replace the last 2003 server with 2008R2 and make the domain 2008 native, will I still have to rerun the OCS forest prep to make sure OCS does not break?

The article in question is....

http://support.microsoft.com/kb/982020/

I just want to know if they are talking about the forest prep or the domain actually already being 2008 native or not.

OCS 2007 and Windows 2008 domain...

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.