Please visit this page: www.xylobot.com Program is some kind of macro and screen overlay program, it puts some kind of a map overlay over the EQ game (which is not a game feature). I figured out how to monitor keystrokes, altough i suspect it is not a way that was done in this proggy, what would I like to know is how program detects which DX functions is EQ calling, and how it hooks to them? For example, program monitors calls to: 1) DI.GetDeviceData 2) DDS.Flip or DDS7.Flip How is that done? Regards, Sasha