Xref: utzoo comp.sys.ibm.pc:33663 comp.lang.fortran:2381
Path: utzoo!attcan!utgpu!watmath!iuvax!mailrus!csd4.csd.uwm.edu!leah!ppd491
From: ppd491@leah.Albany.Edu (Peter P. Donohue @ nowheresville)
Newsgroups: comp.sys.ibm.pc,comp.lang.fortran
Subject: modifying executables
Keywords: exe
Message-ID: <1984@leah.Albany.Edu>
Date: 24 Aug 89 15:28:40 GMT
Organization: The University at Albany, Computer Services Center
Lines: 22


   Where my brother works, they have some software that has an error in
it that they would like to fix (nor do I know what fortran compiler they
used).  The program was written in Fortran but they don't have the
source code. Is there a way to modify the executable?
   The change fix should be relatively easy, just switching a number
around. The program does something with wind direction, which the
machine reads as being off by 180 degrees. It would be an easy fix if
they had the source, but they don't. 
   DOS has a utility called EXE2BIN.EXE, and from Turbo Pascal I have a
utility called BINOBJ.EXE. Would these be of any help in modifying the
program? If the binary or objective files were modified, how would you
get back to executable?
   Thanks for any help or ideas.

							Pete


-- 
Peter P. Donohue 
ppd491@albny1vx.bitnet               .  "Education is a journey,
ppd491@leah.albany.edu               .    not a destination..."