Cant you just do it like some third party apps do it? Just have the game start in normal windowed mode, then auto-move the window a certain ammount of pixels so the window frame isnt visible?
Exactly the same effect as faux-fullscreen, just that you dont see the window borders even if they are still "there"
A good example is the eve online tool, which just moves the window in the manner i described. You have the option to either have the app attempt it at start-up of EVE, or check every minute or so and move the window if required. Takes no cpu power, no resources (okay, 500 byte perhaps
).
I dont see why this couldnt be done for AI War as well, i suggest the devs take a look at it and see if it cant be incorporated on start-up.