ClamWin is a Free Antivirus for Microsoft Windows 98/Me/2000/XP and 2003, which comes with an easy installer and open source code. ClamWin Free Antivirus Logo consists of shell of the snail.

The name snail applies to most members of the molluscan class Gastropoda that have coiled shells. Snails are found in freshwater, marine, and terrestrial environments. Snails move by alternating body contractions with stretching, with a proverbially low speed. They produce mucus in order to help locomotion by reducing friction. The mucus also reduces the snail's risk of injury.