Article View: comp.os.msdos.programmer
Article #3629Environment size hack in DOS 5?
From: George Jetson
Date: Thu, 12 Nov 1992 23:45
Date: Thu, 12 Nov 1992 23:45
35 lines
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2394 bytes
In versions of DOS prior to 4.0, there was a well known patch location in COMMAND.COM that allowed you to change the default environment size. The default was usually something like 160 bytes (0A paragraphs), which is ridculously low. However, it was a simple matter to use DEBUG to patch it to something reasonable (e.g., setting the byte to 30 would get you a 768 char [minimum] environment, in all your subshells.) The ability to do this is absolutely curitical to my use of DOS, and it is one of the main reasons I stick with a version of DOS 3.x. However, I a friend of mine insists on using DOS 5, and she is having environment size problems (I.e., programs which are run under Windoze or other menu programs get small environments) I have spent fruitless hours perusing the DOS 5 COMMAND.COM, and have not been able to solve this problem. (I did it originally on a version of DOS 3.3, long ago, in a couple of hours, so I know it should not be that hard). I have also spent time on DR DOS 6.0, with the same dismal results. I have also perused the usual gang of archive sites, and have not found anything. So, my question to the net is, "Does anyone know the magic patch locations for DOS 5.0?" BTW, patching COMMAND.COM *is* the only correct solution. CONFIG.SYS only affects the first loaded copy of COMMAND.COM. Further, there are various kludge solutions floating around, e.g., ENV.ARC (from 1988 [!]) in MSDOS.SYSUTL on Simtel, et al, but I am not interested in kludge solutions. Anyone know the magic formula? ************************************************************************ I've been told to back off on the diode jokes, but I still don't like smileys ;-) - pynq@quads.uchicago.edu, who is still costing the net hundreds, if not thousands, of dollars, every time he posts - ************************************************************************
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Newsgroups: comp.os.msdos.programmer Path: arc1-ca.pugleaf.net!sparky!uunet!destroyer!ncar!uchinews!quads!pynq From: pynq@quads.uchicago.edu (George Jetson) Subject: Environment size hack in DOS 5? Message-ID: <1992Nov12.234502.22273@midway.uchicago.edu> Summary: Don't tell me about SHELL= in CONFIG.SYS! Sender: news@uchinews.uchicago.edu (News System) Reply-To: pynq@midway.uchicago.edu Organization: D. J. Dougherty & Associates Date: Thu, 12 Nov 1992 23:45:02 GMT Lines: 35