NetHack 3.6.7

I know I can't really critique something here because it's a free volunteer project, but I've always sort of wondered why for the Windows version why instead of screwing around with two different .exes for TTY and graphical, why someone can't just throw up a Direct3D fullscreen window instead? You would have 1 exe, it would be full-screen like it used to be back in the DOS days, and you could switch between TTY and graphical with a command sequence..