Original Post
I made a simple direct3D 8.1 flight simulator in visual c++. I compiled it, and put it in a zip archive. It contained 3 files, flightsim.exe, grass.bmp, and the terrain mesh, terrain.x
I sent this zip to two friends, but they got Illegal operation errors in windows XP when they tried to run this. Is there any other files I have to include to make this work on their computers? (like any dlls?)