The other kernal thing is true,basicly. Xp runs on kernal version 5.1, where as 2003 runs on 5.2. Both of which are mearly subsets of the 5.0 kernal. But yes 2003 is far more stable, than XP.
However I have run XP, stably, on as few as 2 processes(not including the system idle process), but the...