Well excuse me for missing one word and offering what I thought he was asking for. Antivirus and Malware detector programs aren't the same as KeyLog detectors either. There are several of those available through cNet who is a trusted site for most geek software needs. You'll find two very good ones here:

http://download.cnet.com/1770-20_4-0.html?query=Keylogger+Detector&searchtype=downloads