Does this work with ZEN 7?

I'm not seeming to be having much luck with it. I run it, reboot, look at the Image safe data, and it's all still there.

Is there a different way to clear the ZIS data with zen 7?

Do I have to add the registry entry [HKEY_LOCAL_MACHINE\SOFTWARE\Novell\ZENworks]"ZISWIN Clear"="1"