Programs designed to monitor user activity. They may be used with or without consent. Because it is sold commercially, many anti-virus vendors do not detect them. The most common form of a commercial monitoring tool comes in the form of a keystroke logger, which intercepts keystrokes from the keyboard and records them in a log. This can then be sent to whoever installed the software, or keylogger, onto the machine. Some Commercial Monitoring Software may take screenshots or video and send the information to an outbound connection.
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From the WEbsite:
Spy Keylogger is utility that records ALL ascii keystrokes to special log files.
Spy Keylogger will help to preserve your information in all situations.
Spy Keylogger will help you to recall forgotten e-mail or URL.
Spy Keylogger supports work in Stealth mode so that you'll be the only one who will know the program is running. With that you'll keep an eye on users of your PC tracking down all their actions (e-mail sending, visiting web sites, working with documents, etc.).