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This should help...<br />
<a href="http://blogs.technet.com/ucedsg/archive/2008/09/29/exchange-2007-and-windows-2008-ad.aspx" rel="ugc">http://blogs.technet.com/ucedsg/archive/2008/09/29/exchange-2007-and-windows-2008-ad.aspx</a>
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This should help...
http://blogs.technet.com/ucedsg/archive/2008/09/29/exchange-2007-and-windows-2008-ad.aspx [http://blogs.technet.com/ucedsg/archive/2008/09/29/exchange-2007-and-windows-2008-ad.aspx]

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I'm running DCs on Windows Server 2003. &nbsp;A few months ago we went through the process of upgrading from Exchange 2003 to Exchange 2007. &nbsp;Exchange 2007 is running in a dedicated Windows Server 2008 cluster.<br />
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I'm about to install Windows Server 2008 DCs. &nbsp;I have the doccumentation provided by MS about upgrading a 2003 domain to 2008. &nbsp;Is there anything I should look out for since we're now running Exchange 2007?<br />
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I'm just wondering if the upgrade from a 2003 domain to a 2008 domain will be made any more complex since we've now got Exchange 2007. &nbsp;Or will Exchange 2007 be basically agnostic to the upgrade?
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I'm running DCs on Windows Server 2003.  A few months ago we went through the process of upgrading from Exchange 2003 to Exchange 2007.  Exchange 2007 is running in a dedicated Windows Server 2008 cluster.

I'm about to install Windows Server 2008 DCs.  I have the doccumentation provided by MS about upgrading a 2003 domain to 2008.  Is there anything I should look out for since we're now running Exchange 2007?

I'm just wondering if the upgrade from a 2003 domain to a 2008 domain will be made any more complex since we've now got Exchange 2007.  Or will Exchange 2007 be basically agnostic to the upgrade?

upgrading Windows 2003 domain with Exchange 2007 to Windows Server 2008 DCs

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.

Windows Server 2008

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.