You guessed what and where, and I did this one 85-90% deliberate, to see what happens.
But QualityCodec was not removed, not with Antivir, and not detected with Spybot S & D. Removal was pretty simple from Safe mode and cleaning from registry startup items.
Runalizer had "Delete" button locked and I had to do "Change" of startup item to an empty string. But it was not sufficient, for safer removal I had to go to Regedit and do a "search" for everything starting from C:\program Files\QualityCodec directory.
The reason I'm writing is to send these files so Spybot S & D could detect them.
I'm glad if I was able to contribute to the Cause.
Greetz,
Marvin
P.S: Pls find the QualityCodec.zip in attachment. Happy DESTROYING!