Reg Add Hkcu Software Classes Clsid 86ca1aa034aa4e8ba50950c905bae2a2 Inprocserver32 Ve D F -

reg add "HKCU\Software\Classes\CLSID\86ca1aa0-34aa-4e8b-a509-50c905bae2a2\InprocServer32" /ve /t REG_EXPAND_SZ /d "%SystemRoot%\System32\example.dll" /f

For this command to take effect, you must or sign out and sign back in. The change is not instant.

reg add <KeyName> [/v ValueName] [/ve] [/t DataType] [/d Data] [/f]

The command you provided is . Use the corrected pattern: reg add "HKCU\Software\Classes\CLSID\Your-GUID-Here\InprocServer32" /ve /d "Full\Path\To.dll" /f

This command is used to restore the classic right-click context menu