If it turns out you have some variants of Cool Web Search (CWS) You may need CWS Shredder to get rid of it.
Use the name of the Spyware as a search term -- Google, preferably. This will direct you to a Tech Forum with a solution. If it is SpyFalcon (and my guess is that that's the one) removing it for good is a multi - step process.
Good Luck