Topic Last Modified: 2007-03-27

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 not running Microsoft Windows Server 2003 Service Pack 1 (SP1) or a later version.

Exchange 2007 setup requires that the domain controller that serves as the schema FSMO run Windows Server 2003 SP1 or a later version.

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

To resolve this issue, do one or more of the following:

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

For more information about Exchange Server 2007 Setup parameters, see "How to Install Exchange 2007 in Unattended Mode" ( in the Exchange Server 2007 product documentation.