Hello world Assembly i386 (WinAPI)

; Hello world program
; Language: x86 (i386) Assembly
; Library: Windows API 32-bit

global _start

extern GetStdHandle
extern WriteFile

section .text
_start:
    push dword -11
    call GetStdHandle
    sub esp, 4
    mov ebx, esp
    push dword 0
    push ebx
    push message_length
    push message
    push eax
    call WriteFile
    add esp, 4
    xor eax, eax
    ret

section .data
    message db 'Hello world!', 0xD, 0xA
    message_length equ $ - message