Microsoft KB Archive/173594

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Article ID: 173594

Article Last Modified on 10/27/2006


  • Microsoft Systems Management Server 1.2 Standard Edition
  • Microsoft Systems Management Server 2.0 Standard Edition

This article was previously published under Q173594

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry


After starting the Systems Management Server Remote Control Agent service (Wuser32.exe) on a computer running Windows NT, other applications may not launch as expected. It may take several minutes for an application to be presented on the desktop. Eventually the client application will launch and the system will respond normally.

When shutting down the system or stopping the service, the Remote Control Agent fails to stop correctly. The following error can occur:

Service Control Manager: "Could not stop the SMS Remote Control Agent service. Error 2186: The service is not responding to the control function."


When the Remote Control Agent (Wuser32.exe) starts, it attempts to get the security identifiers (SIDs) of all the Windows NT groups or accounts specified in the PermittedViewers registry value. For those groups that are not defined in the domain, the Remote Control Agent can take a long time to determine that these groups do not exist.


To correct the problem, configure the Systems Management Server site settings so that only valid Administrators groups are defined. To do this, perform the steps below corresponding to the version of Systems Management Server that you are using.

Systems Management Server 2.0

  1. In the Systems Management Server Administrator console, navigate to Client Agents, under Site Settings.
  2. Double-click the Remote Tools Client Agent to open its properties.
  3. Click the Security tab.
  4. Edit the permitted viewers list of user groups and remove any that are not valid for the existing domain environment for this site.

These settings will automatically propagate to Systems Management Server 2.0 clients within the client configuration cycle (23 hours).

Systems Management Server 1.2

  1. From the Site Properties window, click the Clients button.
  2. Choose the Proposed Properties.
  3. Click the Options button next to Remote Troubleshooting.
  4. From the Remote Troubleshooting Options window, locate the list of user groups permitted to view Windows NT clients, and remove any that are not valid for the existing domain environment for this site.

The changes will not be propagated automatically to Systems Management Server 1.2 clients. For the existing clients to be updated, each client must execute Upgrade.bat from the SMS_SHR share of a Systems Management Server logon server. Alternatively, you can use the steps in the following article in the Microsoft Knowledge Base to force a site wide client update:

166771 SMS: How to Force Site-Wide Client Updates


Microsoft has confirmed this to be a problem in Systems Management Server version 1.2 and 2.0.


WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

For testing purposes, it may be necessary to immediately affect the changes on a client. To accomplish this, modify the PermittedViewers registry value to contain only the word "Administrators" in English or in your local language. By default, this registry REG_MULTI_SZ value contains the "Administrators" user group in several languages.

For Systems Management Server 2.0, the PermittedViewers value is located in the following registry location:

   HKEY_LOCAL_MACHINE on Local Machine\SOFTWARE\MICROSOFT\SMS\Client\Client Components\Remote Control

For Systems Management Server 1.2, the PermittedViewers value is located in the following registry location:

   HKEY_LOCAL_MACHINE on Local Machine\SOFTWARE\MICROSOFT\SMS\Client Services\Remote Control\Parameters

After making this modification to the registry, restart the Remote Control Agent service. It should not slow down the system. All other applications starting after the Remote Control Agent service should start up as normal.

To make this registry change on all clients at once, you must use the Systems Management Server Administrator program to make a change to the site properties. You can do this by clicking the Options button (located in the Clients window in the Site Properties). From the Remote Troubleshooting Options window, remove and unneeded user groups from the list shown.

For additional information about updating the PermittedViewers registry key on existing Systems Management Server clients, please see the following article in the Microsoft Knowledge Base:

155680 SMS: Windows NT Remote Control Registry Parameters Not Updated

Additional query words: prodsms sid permitted viewers hang hangs hung

Keywords: kbbug kbenv kbremoteprog kbtshoot KB173594