Path: utzoo!attcan!uunet!pilchuck!dataio!fnx!del
From: del@fnx.UUCP (Dag Erik Lindberg)
Newsgroups: comp.os.msdos.programmer
Subject: Re: .com and .exe files
Message-ID: <773@fnx.UUCP>
Date: 14 Nov 90 22:24:58 GMT
References: <6919@hub.ucsb.edu> <4725@trantor.harris-atd.com> <27016@cs.yale.edu> <772@fnx.UUCP>
Reply-To: del@fnx.UUCP (Dag Erik Lindberg)
Distribution: alt
Organization: I/Ovations    Kirkland, WA
Lines: 120

In article <27016@cs.yale.edu> buddington-paul@cs.yale.edu (Paul Buddington) writes:
>convert it to a .COM file and run it.  (The reverse is also true - you cannot
>run the .EXE file from which you generate a .COM file either.)  The problem

I just posted a contradiction of this in another newsgroup, isn't that
a coincidence?  Fact is, if the EXE file is produced correctly, it will
run as either an EXE or as a COM.  Zortech C, for example, generates
programs up to 64k which will run as either EXE or can be converted to
COM and run in that format.  See the end of this article for a small
example generated by Zortech C.

>addition, multi-segmented files can only be in the .EXE format.

This is also not strictly true.  It is true that you cannot have a
stack segment, but a data segment can be used, if you are tricky, allowing
your program to have 64k program and 64k combined stack/data.

Here is an EXE file that runs, and can also be converted to COM.  You
will just have to trust me when I say that larger, more complex programs
also work fine in either mode.

begin 664 hello.exe
M35I$  D    "  ( __\          0  '                           
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end
-- 
del AKA Erik Lindberg                             uunet!pilchuck!fnx!del
                          Who is John Galt?