Microsoft KB Archive/898889

= You should not select the ForestPrep option when you install Live Communications Server 2005 Service Pack 1 =

Article ID: 898889

Article Last Modified on 11/1/2005

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APPLIES TO

 Microsoft Office Live Communications Server 2005 Service Pack 1, when used with:  Microsoft Office Live Communications Server 2005 Standard Edition

 Microsoft Office Live Communications Server 2005 Enterprise Edition 

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SYMPTOMS
Consider the following scenario. You run Setup.exe to install Microsoft Office Live Communication Server 2005 Service Pack 1 (SP1). During the Setup process, you select the ForestPrep option. When you do this, ForestPrep may create LCS global settings under an existing Microsoft container that is not directly located in the root domain system. Additionally, after you start the LCS service, the LCS service stops responding (hangs).



CAUSE
This problem occurs when all the following conditions are true:
 * There is no container that is named &quot;:Microsoft&quot; under the first level of the root domain System container.
 * There is a container two or more levels down from the root domain System container at the same time.

When you run the ForestPrep tool during LCS setup, ForestPrep performs the following tasks:
 * 1) ForestPrep searches the subtree of the root domain System container to locate a Microsoft container that has the CN=Microsoft filter. If ForestPrep does not find this container, ForestPrep creates a Microsoft container under the root domain System container.
 * 2) ForestPrep searches for a Real-time Communications (RTC) service container by using a filter. If ForestPrep does not find this container, ForestPrep creates an RTC service container under the Microsoft container that is found or under the Microsoft container that ForestPrep created during the subtree search.

If a Microsoft container exists two or more levels down from the root domain System container, ForestPrep locates this container when ForestPrep performs the subtree search. Because an RTC service container does not exist under this Microsoft container, ForestPrep creates an RTC service container under the wrong container. This behavior may cause problems to other dependent services or applications.



RESOLUTION
To resolve this problem, follow these steps: <ol> Create a container object under the root domain System container. Then, set CN for this object to Microsoft.</li> Find the RTC service container that ForestPrep created during the subtree search. To do this, in the Live Communications Server administrative console, run the following Lightweight Directory Access Protocol (LDAP) query:

objectCategory=msRTCSIP-Service

</li> Move the RTC service container under the Microsoft container that you created in step 1 of this procedure.</li> Run the Setup program again. Make sure that the ForestPrep check box is selected in the Setup wizard.</li> Re-create the LCS global settings permissions. If the root domain was prepared, prepare the root domain again. If there are child domains that were added to the forest root, rejoin the child domains.</li></ol>

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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbtshoot kbprb KB898889

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