ComboFix - specialized malware removal tool
Notes from ClifNotes, Sept 2007, permalink Adware & Spyware Removal
Warning: I do not recommend this tool. It should only be used by those familiar with fixing malware infections or at the direction of someone who is. I recommend a visit to TeMerc forums to get help before you run this tool.
Help using ComboFix: http://www.bleepingcomputer.com/combofix/how-to-use-combofix
Download ComboFix: http://download.bleepingcomputer.com/sUBs/ComboFix.exe