Can I run SBS 2008 and Windows 2003 as two DCs together?

I am planning to deploy SBS 2008 - Premium Edition. Ideally I don't want to leave the network with a single DC therefore I would prefer to use the existing server Windows 2003 as a second DC. I understand from MS that if I purchase SBS 2008 premium edition I can run a second DC. Can it be Windows 2003 or it must be Windows 2008?
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Adrian WilsonTechnical Consultant / Project ManagerCommented:
The default domain and forest functional levels for SBS 2008 are Windows 2003 so unless it stops you from dcpromoing a Windows 2003 Server I can't see any reason why not, you just won't have all the functionality of a Windows 2008 native domain.


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It can be 2k3.  The only downfall with the SBS line is that specific machine has to hold all the FSMO roles.  Other then that you can have many 2k3 machines for redundancy
Adrian WilsonTechnical Consultant / Project ManagerCommented:
Did you have a successful deployment?
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Windows Server 2008

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