Terminal Servers automatically discover TS License Servers available in a deployment by querying the Active Directory Catalog for a list of license servers. This list is in the "TS-Enterprise-License-Server" object in the Catalog Server. Typically, License Servers in "Enterprise" discovery mode publish themselves to this list during installation. However, this process may go wrong for a variety of reasons, and the publishing step may need to be performed manually. Alternatively, when the discovery mode or deployment location of a License Server changes, it may be necessary to un-publish the LS from the list. In this post, I want to discuss how you can perform these manual operations in Windows Server 2003 License Server.
Manually Publishing a License Server for Enterprise Discovery
Typical problems that cause the failure of publishing the TS License Server are:
In these cases, the License Server may need to be manually published. You may also have to create the TS-Enterprise-License-Server object if it does not yet exist in the Catalog Server.
Publishing a License Server
We can manually publish the Terminal Server License Server, using one of the following two methods,
Using "Active Directory Sites and Services":
Using ADSI Edit tool:
Creating the "TS-Enterprise-License-Server" Object in the Catalog
Manually Un-Publishing a License Server
Typical scenarios that may require manually un-publishing License Server:
In all of these cases, the entry that is left behind in the TS-Enterprise-License-Server object would cause the TS servers to still look for the License Server, even though the LS server may no longer be available or may have moved to a different network. This may lead problems in license discovery and cause the TS servers to not find the type of CAL needed for a particular user. Therefore, it is a good idea to keep the list as current as possible by manually un-publishing a removed License server from the list in the TS-Enterprise-License-Server object.
Un-Publishing a License Server
We can manually Un-Publish Terminal Server License Server using ADSI Edit tool.
Note that the "Active Directory Sites and Services" tool doesn't support removing an entry from a Catalog Server object.
White Paper on Terminal Server License Server is available at http://www.microsoft.com/windowsserver2003/techinfo/overview/termservlic.mspx
*ADSI Tool can be downloaded from
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