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What are your domain and forest functional levels?
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What are your domain and forest functional levels?

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I am trying to install Exchange 2010 on a new server. We currently have Exchange 2003 installed on another server, and Windows 2003 <br />
domain controller(s). At one point I did have a test exchange 2007 server installed that is no longer online due to a hardwre failure. &nbsp;I am getting the error:<br />
<br />
Error:<br />
Coexistence between Exchange Server 2010 and Exchange Server versions older than Exchange Server 2007 SP2 in the same Active Directory Site is not supported.<br />
Click here for help... <a href="http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=fb049413-b962-4973-a1b2-a62a81ef8691" rel="ugc">http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=fb049413-b962-4973-a1b2-a62a81ef8691</a><br />
<br />
Any thoughts? I have tried to do the setup /prepare.. with Exchange 2007, same issue.<br />
<br />
Thanks<br />

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I am trying to install Exchange 2010 on a new server. We currently have Exchange 2003 installed on another server, and Windows 2003 
domain controller(s). At one point I did have a test exchange 2007 server installed that is no longer online due to a hardwre failure.  I am getting the error:

Error:
Coexistence between Exchange Server 2010 and Exchange Server versions older than Exchange Server 2007 SP2 in the same Active Directory Site is not supported.
Click here for help... http://go.microsoft.com/fwlink/?linkid=30939&l=en&v=ExBPA.14&id=fb049413-b962-4973-a1b2-a62a81ef8691

Any thoughts? I have tried to do the setup /prepare.. with Exchange 2007, same issue.

Thanks


Exchange 2010 install Along with Exchange 2003

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.