Site cannot support Exchange 2007 or Exchange 2010 servers

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at]  

Topic Last Modified: 2009-12-11

The Microsoft Exchange Server Analyzer Tool displayed this warning because there are sites in the Active Directory directory service forest that do not have at least one global catalog server that is running on Microsoft Windows Server 2003 Service Pack 1 (SP1) or a later version.

Microsoft Exchange Server 2007 and Exchange Server 2010 setup requires each Active Directory site that will host a server that is running Exchange 2007 or Exchange 2010 to have at least one global catalog server that is running on Windows Server 2003 SP1 or a later version.

To address this issue, upgrade at least one global catalog server in each Active Directory site to Windows Server 2003 SP1 or a later version.

For more information about how to upgrade to Windows Server 2003, see Microsoft Knowledge Base article 810613, "Supported paths for upgrading to Windows Server 2003 or to Windows Small Business Server 2003" (

To obtain the latest service pack for Windows Server 2003, see the Windows Server TechCenter (