Go into Control Panel and look for Installed programs, assuming you're using XP.

Software keyloggers can be far more difficult to detect and remove, but the process should begin with some basic security troubleshooting procedures. First, update your antivirus and antispyware programs with the latest definitions. Next, because keylogging software starts automatically when you boot into Windows, it’s a good idea to boot into Safe Mode instead (so the OS only starts with a limited number of drivers and resources) and run scans to detect viruses and spyware from there. But if your antivirus and antispyware programs don’t nab a keylogging program, you’re not necessarily out of the woods yet. Some keyloggers operating in stealth mode leave absolutely no clues that they’re running or even installed, as no traces appear in the processes list, Add/Remove Programs utility, or even the Windows Registry. But others do leave some tracks that can help you identify their presence. The most likely spot a keylogger will appear is on the Processes tab in the Windows Task Manager, which you can access by pressing CTRL-ALT-DELETE. Under Image Name, examine the listed processes and determine what each one does by running a Google search on the process name (some legitimate processes are easily recognizable, such as Acrobat.exe, Iexplorer.exe, and Winword.exe). You can find more detailed information on processes with Process Explorer, a free utility from Sysinternals ( http://www.sysinternals.com ). Not only does Process Explorer display running processes, but it also reveals the location of the utility. For example, ExploreAnywhere Software’s Keylogger Pro appears simply as klp32.exe in Windows Task Manager, but Process Explorer reveals the true nature of this seemingly mysterious process by showing the full path: C:Program FilesExploreAnywhereKeyloggerProklp32.exe. Discovering the presence of a keylogger doesn’t guarantee you can easily eliminate it, though; many of these programs hide their uninstall utilities and can rebuild their directories if users try to delete files related to the programs. If you discover evidence of a keylogger on your system, try contacting your antivirus or antispyware software vendor for help on removing the program. If you’re using freeware security programs, you’ll need to research the problem yourself for tips on manually removing the keylogger, but plenty of help exists on the Web for keylogger removal. Tread Carefully Because keyloggers and similar surveillance software operate by spying on people, they’re instantly lumped in with other malicious programs designed to steal data. However, they’re legal to use for general surveillance and useful for parents, technicians, and employers who need to keep tabs on children, systems, and employees. On the downside, keyloggers are easy to download, install, and hide from unsuspecting computer users, making them ripe for thieves and others looking to capture Social Security numbers, passwords, and other data. The use of keyloggers isn’t nearly as widespread as other malware, but users with a reason to suspect their systems are being monitored should take immediate steps to detect hidden keyloggers.

Answer #2 from David Hume, will soooooo not work. Re-format the HD, find the mofo who installed this crap on your puter.......... Unless you are a parent, then kudos to you, you doing the right thing.... But if you are a "boss" or "employer", FU.