How do i make an auto-invite program?

I have Microsoft visual basic and i would like to make an auto invite program for an imob game for the ipod touch/iphone. How would i make this using this or any other free program.
How do i make an auto-invite program?
If you are trying to make a program to make a game do somethign fro you, its very complicated and visual basic is no where enough to amke it happen. And when you take it of the PC and to an iphone, things get even more complicated. I would say that if the software doesnt provide you with anyway to do what you want, you probably are best of not trying to find out how to do it with something elce.