Topic Last Modified: 2007-01-08

Microsoft® Exchange Server 2007 setup cannot continue because the domain controller assigned the Active Directory® directory service schema master role, also known as flexible single master operations (FSMO), is running Microsoft Windows® 2000 Server.

Exchange 2007 setup requires that the domain controller that serves as the schema FSMO run Microsoft Windows Server™ 2003 Service Pack 1 (SP1) or a later version.

The FSMO controls all updates and modifications to the Active Directory schema.

To resolve this issue, upgrade or move the FSMO domain controller to a Windows Server 2003 SP1 or a later server version and rerun Microsoft Exchange setup.

For more information, see Microsoft Knowledge Base article 325379, "How to upgrade Windows 2000 domain controllers to Windows Server 2003" (

For more information about transferring the infrastructure master role from one domain controller to another domain controller, see the following Microsoft Knowledge Base articles: