Troubleshooting Group Policy Client-Side Extension Behavior

ID: Q216358

The information in this article applies to:
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Server
IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SUMMARY

When a group policy is being processed on a Windows 2000-based computer, client-side extensions are the components that interpret the stored policy and make the appropriate changes to the environment. In troubleshooting a given extensions' application of policy, the administrator can view the configuration parameters for that extension. These parameters are in the form of registry values.


MORE INFORMATION

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).


Each client-side extension is identified by a subkey beneath the following path:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions
The subkey name takes the form of a Globally Unique Identifier (GUID). For more information about identifying registered group policy client-side extensions, see the following article in the Microsoft Knowledge Base:
Q216357 Identifying Group Policy Client-Side Extensions

Registry Values for Client-Side Extensions

The following registry values may be present for each client-side extension. Note that some of these values may not be present. In this case, the default specified is used by the client extension.

Value: DllName
Type: REG_EXPAND_SZ
Data: <Client-side extension DLL>

Value: ProcessGroupPolicy
Type: REG_SZ
Data: The function within the client-side extension to be called when group policy processing is passed to this extension.

Value: NoMachinePolicy
Purpose: Determines whether or not the client extension will process a group policy when a machine policy is being applied.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Process
  • 0x1 = Do not process
Default: 0 (zero)

Value: NoUserPolicy
Purpose: Determines whether or not the client extension will process a group policy when a user policy is being applied.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Process
  • 0x1 = Do not process
Default: 0x0 = This extension will process a user group policy normally.

Value: NoSlowLink
Purpose: Determines whether or not the client extension will process a group policy when a slow link is detected.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Process
  • 0x1 = Do not process
Default: 0 (zero)

Value: NoBackgroundPolicy
Purpose: Determines whether or not the client extension will process a group policy when a background refresh of the group policy occurs.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Process
  • 0x1 = Do not process
Default: 0 (zero)

Value: NoGPOListChanges
Purpose: Determines whether or not the client extension will process a group policy when there are no changes between the cached list of GPOs previously processed and the current list.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Process
  • 0x1 = Do not process
Default: 0 (zero)

Value: PerUserLocalSettings
Purpose: If enabled, user policies are cached on a per-user and per-machine basis.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Disabled
  • 0x1 = Enabled
Default: 0 (zero)

Value: RequiresSuccessfulRegistry
Purpose: If enabled, requires the successful registration of client-side extension components to occur before it processes a group policy.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Disabled
  • 0x1 = Enabled
Default = 0 (zero)

Value: EnableAsynchronousProcessing
Purpose: Determines whether or not a group policy will continue processing while the client extension is performing operations.
Type: REG_DWORD
Data:
  • 0 (zero) or value not present = Synchronous
  • 0x1 = Asynchronous
Default = 0 (zero)


Additional query words: tshoot

Keywords : kbtool kbtshoot
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbinfo


Last Reviewed: December 29, 1999
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