Applies to: Exchange Server 2013

Topic Last Modified: 2012-06-05

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When you run Microsoft Exchange Server 2010 Setup /PrepareAD, the Microsoft Exchange Server Analyzer Tool queries the existing Active Directory topology to determine whether any Microsoft Exchange Server 2007 server roles exist. If Exchange 2007 server roles are not detected, you receive the following warning message:

Setup is going to prepare the organization for Exchange Server 2010 via 'Setup /PrepareAD' and no Exchange Server 2007 roles have been detected in this topology. After this operation, it will be impossible to install any Exchange Server 2007 roles.

Before deploying Exchange Server 2010, consider the following factors that may require you to deploy an Exchange 2007 server with all server roles installed prior to deploying Exchange 2007:

In addition, when evaluating the options for your organization, make sure you have considered the following questions:

If you decide that you need to deploy an Exchange 2007 server prior to deploying Exchange 2010, the deployment of a single Exchange 2007 with all server roles is sufficient to enable the deployment of future Exchange 2007 servers in the organization. To deploy the Exchange 2007 server into your Exchange 2003 organization, follow these steps:

  1. Run Exchange 2007 Setup /PrepareSchema.

  2. Run Exchange 2007 Setup /PrepareAD.

  3. Run Exchange 2007 Setup /PrepareDomain on all domains that contain recipients, Exchange 2003 servers, or global catalogs that could be used by an Exchange server.

  4. Install an Exchange 2007 server with all four server roles (Hub Transport, Client Access, Mailbox, and Unified Messaging).