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Editorial Team
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Asked: 2026-05-14T06:53:28+00:00

I want to compile a "Hello World" MS-DOS exe. Not a program that runs

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I want to compile a "Hello World" MS-DOS exe.

Not a program that runs in XP 16bit mode, or in MS-DOS mode on top of Windows OSs.

A HELOWRLD.EXE that I can run on my MS-DOS box.

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  1. Editorial Team

    I think DEBUG.EXE still ships with windows (at least it does with XP). Run debug and enter something along the lines of the following transcript:

    c:\src> debug
-a 100
1373:0100 mov ah,9
1373:0102 mov dx,108
1373:0105 int 21
1373:0107 ret
1373:0108 db "Hello world!$"
1373:0115
-n c:\hi.com
-r bx
BX 0000
:0
-r cx
CX 0000
:15
-w
Writing 00015 bytes
-q

c:\src> c:\hi.com
Hello world!

c:\src> _

    Read more on DEBUG.EXE at: http://en.wikipedia.org/wiki/Debug_(command)

    And the INT 21 display string http at: http://www.uv.tietgen.dk/staff/mlha/PC/Prog/asm/int/21/09.htm

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