I reccomend this. Spybot Search And Destroy. AND its FREE
If you cant find the paths and registry entries it might be because the threat is simply running in memory.(many ways to make it work without the need of the registry or even a file)
Spybot scans your active memory processes for any malware and removes them. Fast and Easy to use. Also uses little RAM and CPU. A great program.
Download it here:
http://www.safer-networking.org/en/mirrors/index.html