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Codename Helsinki Oy Anti-cheat is an Anticheat developed by Finnish company, Codename Helsinki Oy. The program is available for all Codename's game servers, but other server providers or communities can request for it. It is designed to decrease the amounts of cheaters in Valve's online games, especially in Counter-Strike and Counter-Strike:Source. The program has been developed since the September 15, 2006.^{[citation needed]}

[edit] Operation

CHOAC has many ways of stopping cheaters, the main function of this program is to capture screenshots of players game while gaming.

[edit] Contacting

choac@codename.fi, codename.fi @ Qnet, http://choac.fi/forum