Directory Service Integration Feature

Updated: June 25, 2007

Applies To: Windows Server 2008, Windows Vista

If you are installing Message Queuing on a computer that is a member of a Server domain, you can specify whether the computer will operate in domain mode, by installing the directory service integration feature, or in workgroup mode, by not installing the feature. In the context of Message Queuing, workgroup mode can be defined as any mode of operation that does not allow access to a directory service, even if the applicable computer belongs to a domain. The workgroup mode of operation requires direct connectivity to send messages.

If you are installing Message Queuing on a computer that belongs to a domain and you select the directory service integration feature, Setup will attempt to contact a Server domain controller in the local site or a nearby site. If successful, the computer will operate in domain mode, meaning that access to Active Directory Domain Services will be enabled and an msmq object will be created in Active Directory Domain Services. Note that a Server domain controller can only be found automatically. If your computer belongs to a domain and has the directory service integration feature installed, but is temporarily unable to access a domain controller, the computer will work in workgroup mode. However, the next time you restart such a computer, or stop and restart the Message Queuing service, Message Queuing will automatically attempt to contact a domain controller in the local domain. If a domain controller is available and contact is successful, the computer will then operate in domain mode.

If your computer does not belong to a domain, installation of the directory service integration feature allows for the possibility that the computer might later join a domain.

For more information about the characteristics of workgroup mode, domain mode, and offline mode, see Deploying in a Domain Environment, and Deploying in Workgroup Mode.

For information about security permissions required by Message Queuing with the directory service integration component on a computer that belongs to a domain, see Installation Permissions.

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