Пиши на Асемблере .... Hello, world! Говорят занимает немного...

mov ax, 0b800h
mov ds, ax
mov [02h], 'H'
mov [04h], 'e'
mov [06h], 'l'
mov [08h], 'l'
mov [0ah], 'o'
mov [0ch], ','
mov [0eh], 'W'
mov [10h], 'o'
mov [12h], 'r'
mov [14h], 'l'
mov [16h], 'd'
mov [18h], '!'
ret

Или так:

.386
.model flat, stdcall
option casemap:none
include \masm32\include\windows.inc
include \masm32\include\kernel32.inc
includelib \masm32\lib\kernel32.lib

.data
msg db "Hello, world!", 13, 10
len equ $-msg

.data?
written dd ?

.code
start:
push -11
call GetStdHandle

push 0
push offset written
push len
push offset msg
push eax
call WriteFile

push 0
call ExitProcess
end start