A setup prerequisite change in Exchange 2007 SP1

Thanks for the answer can you please give a yes or no to this question.

In the forest outlined above do the domains with W2000/E 2000 that will never host  E2007 need to be upgraded to windows 2003 DC/GC?

This is why I am confused. Your post talks about running /PrepareDomain

But according to the documentation the order of the switches is:

1) /PrepareLegacyExchangePermissions
2) /PrepareSchema
3) /PrepareDoamin

And the documentation says that

“When transitioning from Exchange 2000 Server to Exchange Server 2007, you must first grant specific Exchange permissions in each domain in which you have run Exchange 2003 or Exchange 2000 DomainPrep. To do this, you run the setup /PrepareLegacyExchangePermissions command”  

So as I read that it means that every domain that has E2000 will need to have the /PL switch run against it. And to run the switch you must have W2003.

I have been able to run the /pl switch against a W2003 domain. However when I try run the setup /ps /dc:W2003DC.Domain.com it fails with the error about no W2003 GC in the other W2000 domains. (I am running the /PS in the W2003 domain.)

BTW I am using the 32 bit  sp1 version demo version.

Thanks for your help.