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And, it is also always recommended to never place Exchg on a DC, so you are in the right in that regard, as well.<br />
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~coolsport00
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And, it is also always recommended to never place Exchg on a DC, so you are in the right in that regard, as well.

~coolsport00

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We are planning to go to Exchange 2007 and our in the process of specing a 64 bit system. &nbsp;It also seems like now might be the best time to load this system with Server 2008. &nbsp;All of my domain controllers are running server 2003 and they CANNOT be updated to 2008 at this time.<br />
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So can I install 2008 for exchange or should I install it on 2003? &nbsp;The exchange server will not be a domain controller.
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We are planning to go to Exchange 2007 and our in the process of specing a 64 bit system.  It also seems like now might be the best time to load this system with Server 2008.  All of my domain controllers are running server 2003 and they CANNOT be updated to 2008 at this time.

So can I install 2008 for exchange or should I install it on 2003?  The exchange server will not be a domain controller.

Exchange 2007 on Windows Server 2008 in an 2003 AD Environment?

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.