If you want to get rid of stuff use CC Cleaner and clean the registry, and the rest of the computer, and you see most times what is hanging around IF, and I do mean IF, you really know the base words you are looking for.
You shouldn't have to run a third-party product just to uninstall another product. If a product doesn't fully remove itself from the system when it is uninstalled, the developers are either incompetent or have questionable motives/ethics. No one is in a better position to carry out the uninstallation of a product than the creators of the product, and if they won't do it, there's a problem.