Hehe. Well, I (somehow) managed to believe the keystroke would have something to do with something something. That it actually played a part of the whole thing. But apparantly not.
=)

I have done some testing. This is what I have figured out - So if someone knows it is wrong, please correct me. =)

I have tried to update the following with the Updatethingy:

ScreenSaveActive - Works
ScreenSaverIsSecure - Works
ScreenSaveTimeOut - Does not work
SCRNSAVE.EXE - Works
Wallpaper - Works