REGEDIT4
[HKEY_CLASSES_ROOT\CLSID\{EE3AF205-936A-481c-A4F5-1848ED2CD398}\InprocServer32]
    @="ButtonSetting.dll"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shell\Extensions\Controls Folder\Buttons\shellex\PropertySheetHandlers\{EE3AF205-936A-481c-A4F5-1848ED2CD398}]
[HKEY_LOCAL_MACHINE\HARDWARE\OEM\KEYBD]
   "KeyLock"=dword:0
[HKEY_LOCAL_MACHINE\SOFTWARE\OEM\ButtonSetting]
   "KeyBacklightPage"=dword:00000001
