You could allwasy try and search the registry for the file name. It has to be started from somewhere and all information about your OS is contained in the registry.
Please note that if you modify something in your registry it could completly hose your entire system, so if you don't feel comfortable doing it, don't bother.
Might be easier at the end of the day to just save your data somewhere and rebuild the OS. Most times spyware and pop ups and things like that really dig down deep in your system and are never really gone, it's better just to format the os and start over sometimes instead of just trying to bandaid the problem.
1.2.1 Ball Pythons
1.0 Cali King Snake (Weebl)
0.0.1 Black Breasted Leaf Turtle (Hootie)