***UPDATE*** New free software is now available and is much more stable than the mentioned version. You can find it here:
This video shows how to use facial recognition software to lock/unlock your computer using your computers webcam and your face. While the current version of the software is 20 USD, you can download a previous freeware version from here.
Download version 1.2.1 (Please read NOTE)
NOTE: Since this is an older version of the program, the company no longer offers any support for it. Do not use this version unless you are willing to assume the risks. If you have any doubts about this version, please don’t use it and simply purchase the most current version from KeyLemon.com. Just becaue it works on my computer doesn’t mean it will work on everyone’s computer.