Someone who knows about a program that can monitor the gameport?
z.B to make a click on a joystick to a keystroke in windows.

are you trying to make a controller for a game emmulator or what? I don't see what purpose other then that to have a game controller connected to your computer.. Also the program would have to support getting the signal from the controller, and what signal pulse does what...

unless.. you were trying to make your own like controller for Winamp... to change tracks and such like the Cd-Changers in cars do now days...