Some people will do anything to avoid writing a game.
I would imagine if you install mingw, you could also use a proper C preprocessor pretty easily on your blitz source with something like (untested):
gcc -E -o progout.bb progin.bb
What about the actual ide though, is it possible to change highlighting/language rules? Not a biggie considering other people will write ides to do it anyway but still nice to have out of the box.