Scan your computer to find settings changed by spyware, malware or other unwanted programs. Trend Micro HijackThis generates an in-depth report to enable you to analyze and fix your infected computer. HijackThis makes no separation between safe and unsafe settings in its scan results giving you the ability to selectively remove items from your machine. In addition to this scan and remove capability HijackThis comes with several tools useful in manually removing malware from a computer.

Program Home Page: http://free.antivirus.com/hijackthis/
Download: http://www.trendmicro.com/ftp/products/hijackthis/beta/HijackThis.exe
Windows