From:	shd AT earthling DOT net (Steven Don)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: .COM's with DJGPP?
Date:	19 Apr 1998 22:39:10 GMT
Organization:	EuroNet Internet
Lines:	14
Message-ID:	<6hduee$ffh@news.euro.net>
References:	<Pine DOT SUN DOT 3 DOT 91 DOT 980419141830 DOT 23362N-100000 AT is>
NNTP-Posting-Host:	breda25.pstn02.concepts.nl
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

In article <Pine DOT SUN DOT 3 DOT 91 DOT 980419141830 DOT 23362N-100000 AT is>, Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> wrote:
>
>On 18 Apr 1998, Luke Bishop wrote:
>The simple truth is DOS doesn't use the file's extension to decide how
>to load and run it.  The extension is only used to look for the
>executable file.  When the file is found, DOS examines its first two
>bytes.  If they are MZ, DOS runs it as an .EXE-style; otherwise it
>assumes it's a .COM image.
*** Strangely, it also works if the header starts with ZM. Most people already 
know this, but the letters MZ come from the initial of DOS-programmer Mark 
Zibowski.

Grtz,
  SHD

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