Want to bet? As I said nothing was on my system. No lingering (orphan) registry entries, no folders, nothing I could latch on to so the uninstaller would work. Just clicking it, as I also said, did not work either.

Considering Revo brought up your uninstaller all I can say is this is an issue with a sticky program with no regards to the end user. Hell, even AVG, which I despise, has a force option for rare cases like this but yours had nothing and I had to reinstall an image which did not have Avast on it because your software, regardless of the reason, forced me to take that drastic of a measure.