Hello World на Ассемблере

.686
.model flat, stdcall
option casemap:none
includelibC:\masm32\lib\kernel32.lib
include C:\masm32\include\kernel32.inc
includeC:\masm32\includ\windows.inc
includelib C:\masm32\lib\user32.lib
include
C:\masm32\include\user32.inc
.data
cWritten DWORD 0
stdout DWORD 0
_title db " "
mess db "Hello, world!"
.code
_st:
invoke MessageBox, 0, ADDR
mess, ADDR _title, 0
invoke ExitProcess, 0
end _st