Policy selection for ADMX packs

Policy overview

Key metadata and intent for this policy.

ClassComputer

CategoryWindows Components > Internet Explorer > Security Features > Add-on Management

Supported onAt least Internet Explorer 6.0 in Windows XP with Service Pack 2 or Windows Server 2003 with Service Pack 1

Supported OS tags: Windows10, Windows10RT, Windows11, Windows7, Windows8, Windows81, WindowsRT, WindowsRT81, WindowsServer2003, WindowsServer2008, WindowsServer2012, WindowsServer2012R2, WindowsServer2016, WindowsVista, WindowsXP

This policy setting allows you to manage a list of add-ons to be allowed or denied by Internet Explorer. Add-ons in this case are controls like ActiveX Controls, Toolbars, and Browser Helper Objects (BHOs) which are specifically written to extend or enhance the functionality of the browser or web pages. This list can be used with the 'Deny all add-ons unless specifically allowed in the Add-on List' policy setting, which defines whether add-ons not listed here are assumed to be denied. If you enable this policy setting, you can enter a list of add-ons to be allowed or denied by Internet Explorer. For each entry that you add to the list, enter the following information: Name of the Value - the CLSID (class identifier) for the add-on you wish to add to the list. The CLSID should be in brackets for example, ‘{000000000-0000-0000-0000-0000000000000}'. The CLSID for an add-on can be obtained by reading the OBJECT tag from a Web page on which the add-on is referenced. Value - A number indicating whether Internet Explorer should deny or allow the add-on to be loaded. To specify that an add-on should be denied enter a 0 (zero) into this field. To specify that an add-on should be allowed, enter a 1 (one) into this field. To specify that an add-on should be allowed and also permit the user to manage the add-on through Add-on Manager, enter a 2 (two) into this field. If you disable this policy setting, the list is deleted. The 'Deny all add-ons unless specifically allowed in the Add-on List' policy setting will still determine whether add-ons not in this list are assumed to be denied.

Internal name

AddonManagement_AddOnList

Policy ID

cea14008a5c0

Elements

Registry values

How enabled and disabled states update the registry.

Registry location	Type	Enabled value	Disabled value
HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Ext\ListBox_Support_CLSID	REG_DWORD	1	0

Policy elements

Inputs and configuration options exposed by this policy.

Element	Type	Registry mapping	Constraints & behavior
Add-on List ID AddOnList	list	HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID\ListBox_Support_CLSID Type REG_MULTI_SZ	List: additive, explicit value

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