How to manage Internet Explorer add-ons in Windows XP Service Pack 2
This article describes how to change the status of a Microsoft Internet Explorer add-on and how to update an add-on by using the Manage Add-ons feature. This article lists some troubleshooting tips to help you resolve problems that you might have with add-ons. It also lists some troubleshooting tips to help you resolve problems that you might have with the Manage Add-ons feature itself. The article describes how to manage add-ons by using registry entries and Group Policy. Administrators can let users manage certain add-ons but reserve management of other add-ons for the administrator. Or, administrators can manage all add-ons. These topics are covered in specific sections that discuss the following policy settings:
- Deny all add-ons unless specifically allowed in the Add-on List
- Add-on List
Microsoft Internet Explorer add-ons are software components. When you visit a Web site, Internet Explorer add-ons may be downloaded automatically, or you may be prompted to download an add-on. For some add-ons, you might specifically visit a Web site to obtain the latest add-on for Internet Explorer. These components may be third-party ActiveX controls that extend browser functionality or that provide special user interface elements in Internet Explorer. You can control add-ons by using the Manage Add-ons feature. This article describes how to use and how to troubleshoot this feature.
To make sure that the Manage Add-Ons dialog box is displaying as many add-ons as possible, update the Add-on Manager. To update the Add-on Manager, visit the following Microsoft Web sites:
Using the Manage Add-ons featureTo change the status of an add-on or to update an add-on, follow these steps:
- Start Internet Explorer.
- On the Tools menu, click Manage Add-ons.
- Click the name of the add-on.
- Use one of the following methods:
- Click Update ActiveX to replace the add-on with the current version. This option is not available for all add-ons.
- To enable an add-on, click Enable, and then click OK.
- To disable an add-on, click Disable, and then click OK.
Troubleshooting add-onsIt is frequently acceptable to use add-ons from trusted sources. But sometimes add-ons cause Internet Explorer to quit unexpectedly. Internet Explorer may quit unexpectedly if the add-on was poorly designed or if the add-on was created for an earlier version of Internet Explorer. When Internet Explorer quits unexpectedly, you may be prompted to disable the add-on. If Internet Explorer quits unexpectedly, try one or more of the following:
- Try to update the add-on.
- Disable the add-on, and then visit the same Web site. Verify that you have to have the add-on for the Web site.
- If the features of the add-on are needed for a Web site, or if the features of the add-on enhance your browsing experience, enable the add-on.
For more information about publishers that are blocked, follow these steps:
- In Internet Explorer, click Help, and then click Contents and Index.
- In the Help dialog box, click the Search tab, type blocked publisher, and then click List Topics.
Troubleshooting the Manage Add-ons featureIf you experience a problem when you use the Manage Add-ons feature, try the following:
- Log on to the computer as a different user, and then repeat the task. The configuration of disabled add-ons is stored on a per-user basis.
- Examine the following registry subkey for add-ons that are blocked: Each add-on that is blocked or disabled is represented by a subkey that has the class identifier (CLSID) of the add-on that is blocked. You can search for the CLSID in the HKEY_CLASSES_ROOT registry key to determine the add-on that each key represents.HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings
Note TheSettingsregistry subkey is not created until at least one add-on is blocked or disabled.
Managing add-ons by using registry entries and Group PolicyImportant This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
As an administrator, you can use Group Policy to predefine the controls that users can enable or disable. Use the Group Policy Object Editor to change the policy settings.
- Click Start, click Run, type gpedit.msc, and then click OK.
- Expand Computer Configuration or User Configuration, expand Administrative Templates, expand Windows Components, expand Internet Explorer, expand Security Features, and then click Add-on Management.
- Deny all add-ons unless specifically allowed in the Add-on List
- Add-on List
- Process List
- All Processes
Deny all add-ons unless specifically allowed in the Add-on ListYou can configure each client to deny all the add-ons that are not included in the Add-on List policy setting by enabling the following policy setting:
Deny all add-ons unless specifically allowed in the Add-on ListThis policy setting prevents add-ons from being installed or from being used. This restriction also prevents the user from managing add-on policy settings individually. If you do not configure this policy setting, users can manage add-ons that are not already defined in the Add-on List.
Add-on ListYou specify individual add-ons by using the CLSID in the Add-on List policy setting. The Value Name part of the policy setting must be the CLSID of the add-on, and the CLSID must include the braces that enclose the rest of the CLSID. The Value part of the policy setting must contain one of three possible values:
- 0 - The add-on is disabled, and users cannot manage the add-on from the user interface.
- 1 - The add-on is enabled, and users cannot manage the add-on from the user interface.
- 2 - The add-on is enabled, and users can manage the add-on from the user interface.
Disabling all access to add-on managementTo have us enable or disable the access to add-on management for you, go to the "Fix it for me" section. If you prefer to enable or disable the access to add-on management yourself, go to the "Let me fix it myself" section.
Fix it for me
To fix this problem automatically, click the Fix it button or link. In the File Download dialog box, click Run, and then follow the steps in the Fix it Wizard.
- This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
- If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD, and then run it on the computer that has the problem.
Let me fix it myselfTo turn off the Disable option and the Enable option for all add-ons, follow these steps:
- Click Start, click Run, type regedit, and then click OK.
- Locate the following registry subkey:HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Internet Explorer\Restrictions
Note This registry subkey is available only in a domain environment where access to add-on management is disabled through a group policy by an administrator.
- On the Edit menu, point to New, and then click DWORD Value.
- Type NoExtensionManagement.
- Double-click NoExtensionManagement, and then type 1.
The following are the values that you can specify:
- 0 - The user can enable or disable the add-ons.
- 1 - The user cannot change the status of any add-ons.
- Click OK, and then quit Registry Editor.
- In the Group Policy Object Editor, expand Computer Configuration or User Configuration.
- Expand Administrative Templates, expand Windows Components, expand Internet Explorer, and then double-click the following policy setting:Do not allow users to enable or disable add-ons
winxpsp2 xpsp2 fixit fixme fix it
Article ID: 883256 - Last Review: 02/28/2011 09:46:00 - Revision: 5.0
Microsoft Internet Explorer 6.0, Windows Internet Explorer 7, Windows Internet Explorer 8
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