19 it´s Pause/Break

It uses Key codes to identify the keys, here is a table :

http://help.adobe.com/en_US/AS2LCR/F...=00000520.html

- The key_toggle value defines the key that enable/disable AA in-game.

- The key_screenshot value defines the key to take screenshots.

The screenshots taken with the game will not show AA, so this mod have a build-in screenshot method that takes screenshots with AA, you just have to define a key and the screenshots will be saved where the mod files is, that is where Launcher.exe is.