I guess it`s something custom.And about the free solution , it`s a bad one and unsure one,for sure.
You may take a look of these webcam script sites:
http://www.softfreaks.com/
http://simplythebest.net/scripts/DHT...cript_43a.html
http://www.24camportal.com/index.php?fig=1&lang=
...etc
And others on the Google
