HexVector, you're my hero!
Like I said, I've already removed it from the Powertoys setup, but the cursed thing remained.
But when I read your post I took a peak in the registry, and lo and behold, it was right there in the startup, called "CoolSwitch" or something like that.
Removed that key, and it's gone!
Whoever referred to this as "Cool" should be shot in the knees.
Thanks a bunch peeps.