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From: psfales@ihlpe.ATT.COM (Pete Fales)
Newsgroups: comp.sys.ibm.pc
Subject: Re: program always uses drive A:
Message-ID: <2093@ihlpe.ATT.COM>
Date: Mon, 28-Sep-87 14:40:59 EDT
Article-I.D.: ihlpe.2093
Posted: Mon Sep 28 14:40:59 1987
Date-Received: Tue, 29-Sep-87 06:49:48 EDT
References: <10495@beta.UUCP>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 24
Keywords: changing hard I/O *without* using assign, subst, and company

In article <10495@beta.UUCP>, dd@beta.UUCP (Dan Davison) writes:
> A problem: program always reads from drive A:
> 
> I have an application program, available only as a .EXE file, which
> always tries to read a data file from the A: drive.  Is there a way to
> change this using DEBUG?  I'd like to change this to the C: drive.  This
> program is not a commerical program, and is not available in source code
> to fix this problem.  Any hints would be welcome.  Because of the users
> of the program (real novices) this correction must be made in the
> program, not at the DOS level.  Thanks!

I would go in with DEBUG and look for any occurrences of the string "A:"
and change them to use drive C.  This is not guaranteed to work because
there are other ways to access the A: drive that can be used, especially
by programs originally written for older versions of DOS.  But it's
worth a try.   If that doesn't work, the only thing to do is trace
through the execution of the program with DEBUG (or a better debugger) and
figure out what is going on.

-- 
Peter Fales		UUCP:	...ihnp4!ihlpe!psfales
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