Policy selection for ADMX packs

Policy overview

Key metadata and intent for this policy.

ClassComputer

CategoryWindows Components > Internet Explorer > Security Features > MK Protocol Security Restriction

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

The MK Protocol Security Restriction policy setting reduces attack surface area by preventing the MK protocol. Resources hosted on the MK protocol will fail. This policy setting allows administrators to define applications for which they want this security feature to be prevented or allowed. If you enable this policy setting and enter a Value of 1, use of the MK protocol is prevented. If you enter a Value of 0, use of the MK protocol is allowed. If a Value Name is empty or the Value is not 0 or 1, the policy setting is ignored. Do not enter the Internet Explorer processes in this list: use the related Internet Explorer Processes policy to enable or disable IE processes. If the All Processes policy setting is enabled, the processes configured in this box take precedence over that setting. If you disable or do not configure this policy setting, the policy setting is ignored.

Internal name

IESF_PolicyProcessList_3

Policy ID

9eb9c3aa9131

Elements

Registry values

How enabled and disabled states update the registry.

Registry location	Type	Enabled value	Disabled value
HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\ListBox_Support_FEATURE_DISABLE_MK_PROTOCOL	REG_DWORD	1	0

Policy elements

Inputs and configuration options exposed by this policy.

Element	Type	Registry mapping	Constraints & behavior
Process List: ID IESF_PartnameProcessList	list	HKLM\Software\Policies\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_DISABLE_MK_PROTOCOL\ListBox_Support_FEATURE_DISABLE_MK_PROTOCOL Type REG_MULTI_SZ	List: additive, explicit value

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