As with all time expiration software, even if you have uninstalled the product, small trace files still reside on your PC. These secret files do nothing but loiter around your PC hard drive in hidden location and/or registry entries. The really smart ones lie outside of your OS (boot sector region) so you can't delete them. They store information about what you installed, when you installed it, how long you installed it and how many times you tried to run your expired software, etc. When I pay over $2,000 for a PC, I happen to own every inch of it. So I expect these spyware files to pay RENT or get EVICTED. And that's just the beauty of being a programmer.