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Deploy Exchange Server 2007

Find prerequisites, requirements, and information about installing, upgrading and coexisting Exchange Server 2007 with previous versions of Exchange.

What's New

Upgrading to Exchange Server 2007

You cannot upgrade an existing Exchange Server version 5.5 organization to Exchange 2007. You must first migrate from the Exchange Server 5.5 organization to either an Exchange 2003 organization or an Exchange 2000 organization, and then you can transition the Exchange 2003 or Exchange 2000 organization to Exchange 2007.

Migrating to Exchange Server 2007 from Non-Exchange Messaging Systems

More tools and associated guidance are available from the TechNet Resources for Moving to the Microsoft Collaboration Platform Web site.

Coexisting with Previous Versions

Exchange 2007 does not support coexistence with Exchange Server version 5.5. Your Exchange organization must be operating in native mode to support coexistence with Exchange 2007.


For information about the improvements to the Microsoft Exchange security and permissions model, as well as the new and improved Exchange Administrator roles, see Permission Considerations.

Partner Services

Visit the Exchange Server product site for more information about partner services.

  • Partners. Find ISV partners, partners for systems integration, Exchange Hosted Services, and more.