Retro xmb create

Hi, you can help or give the instruction concerning creation of DOS games? I want to create and when I insert the file of game in the exe format, writes that, not all established. How to be if there is a desire to create, but it is impossible, I look for in various territories and there is nothing that I didn't consider demanded.
You can even to send in photos or video...
If, a time are occupied with it, I can wait...
I will be very grateful to you for it.
Hi, who is able to be engaged in the program of a retro of xmb create?