msgbox.asm

NULL EQU 0
MB_DEFBUTTON EQU 100h
IDNO EQU 7
MB_YESNO EQU 4

extern _MessageBoxA@16
extern _ExitProcess@4

global Start

section .data

	MessageBoxMessage db "Hello from MessageBox", 0
	MessageBoxTitle db "ЭЭЭЭЭээээээээ", 0

section .text

	Start:

		push MB_YESNO | MB_DEFBUTTON
		push MessageBoxTitle
		push MessageBoxMessage
		push NULL
		call _MessageBoxA@16

		cmp EAX, IDNO
		je Start

		push NULL
		call _ExitProcess@4