do u trying processviewer from sysinternal? it very good to see whatever process running in windows. and for searching in registry, try the old and fast regcrawler. be sure u know the drivers name exactly. then u'll get something. i think this prog is dependent to something else prog/whatever. so it may be wont work just by unload the driver. the dependency can be seen, thought.
ps. i think u should stop trying such illegal activity. if u insist, theres always another way to achieve the goal, like masses demonstration example
regards
dion