>>7
Most C programs are >= 4 kb. If you happen to be a fucking moron an actually meant <= 4 kb, yes, it is very possible, although it depends quite a bit on your OS. When I was still using Windows, I remember getting the base code for an intro to a bit under 1k. It was a bit trickier on Linux and I've never even tried it on OS X (which I've been primarily using for four years now).