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From: gu.morris@SCIENCE (Richard D. Morris)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Display Paint pictures from a program?
Message-ID: <12341120864.28.GU.MORRIS@SCIENCE.UTAH.EDU>
Date: Fri, 9-Oct-87 11:21:37 EDT
Article-I.D.: SCIENCE.12341120864.28.GU.MORRIS
Posted: Fri Oct  9 11:21:37 1987
Date-Received: Sun, 11-Oct-87 14:45:02 EDT
Lines: 16
In-Reply-To: <200@eagle_snax.UUCP>

X-Us-Mail: "Center for Scientific Computation, South Physics, University of Utah, Salt Lake City, UT 84112"

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The easiest way I know of to increase or decrease the environment size is
by patching COMMAND.COM.  Microsoft currently offers a utility to do this
which is included with their C compiler development system, and I also
would surmise other language development products.  The utility is called
SETENV.EXE.  It takes as parameters the command.com to be patched as well
as the new environment size in bytes. 

The environment size is stored as a byte which is the number of paragraphs
to be allocated. I patched the PC-DOS 3.1 COMMAND.COM that I am using and
found that the byte that is changed is at offset "0xc11".  I would make
no assumptions as to whether or not this is the location with any other
version of DOS.

Hope this is of some help to you.

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