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         .486p
         .model  flat,STDCALL
include  win32.inc
 
extrn            MessageBoxA:PROC
extrn            ExitProcess:PROC
 
.data
 
HelloWorld db "Hello, World!",0
msgTitle db "Hello world program",0
 
.code
Start:
         push    MB_ICONQUESTION + MB_APPLMODAL + MB_OK
         push    offset msgTitle
         push    offset HelloWorld
         push    0
         call    MessageBoxA
 
         push 0
         call ExitProcess
ends
end Start

prog.asm:1: error: attempt to define a local label before any non-local labels
prog.asm:2: error: attempt to define a local label before any non-local labels
prog.asm:2: error: parser: instruction expected
prog.asm:3: error: parser: instruction expected
prog.asm:5: error: parser: instruction expected
prog.asm:6: error: symbol `extrn' redefined
prog.asm:6: error: parser: instruction expected
prog.asm:16: error: comma, colon or end of line expected
prog.asm:17: error: comma, colon or end of line expected
prog.asm:24: error: parser: instruction expected

Standard output is empty