Even Balance does offer a standalone update tool called PBSETUP which you can download and run to manually add the Call of Duty games you have installed and force the update of local PunkBuster files but with the latest versions of PBSETUP released the older Call of Duty titles have been removed from the “supported games list”. There are still a lot of servers running PunkBuster in the older Call of Duty titles and if you can’t get your PunkBuster files updated on the client side you will most likely run into issues when joining or trying to play on PunkBuster enabled servers. My assumption is they had contracts with Activision to support these Call of Duty games for periods of time and when those contracts expired Activision made the decision to not renew those contracts because of the latest games being released. As of 2013/2014 Even Balance has officially dropped PunkBuster support for older Call of Duty titles. PunkBuster used to be the standard anti-cheat software used in older Call of Duty titles but now that Activision has switched their games to the Steam platform they have moved to a combination of anti-cheat measures through the Valve Anti-Cheat System (VAC) and Activision developer’s own in house anti-cheat technologies.
