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Enforce Shell Extension Security (All Windows)

This restriction can be used to limit the system to only run files that have an approved shell extension.

This tweak can be easily applied using WinGuides Tweak Manager.
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Open your registry and find or create the key below.

Create or modify the DWORD value called "EnforceShellExtensionSecurity" and set it to "1" to enable the restriction or "0" to disable it.

The approved shell extenstions are defined under the [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved] key.

Restart Windows for any changes to take effect.

Registry Editor Example
|NameTypeData|
|(Default)REG_SZ(value not set)|
|EnforceShellExtensionSecurityREG_DWORD0x00000001 (1)|
-
|HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\...|
-
Registry Settings
User Key: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer]
System Key: [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\
Explorer]
Value Name: EnforceShellExtensionSecurity
Data Type: REG_DWORD (DWORD Value)
Value Data: (0 = default, 1 = enable security)

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Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last modified: September 2, 2002