Xref: utzoo comp.sys.ibm.pc:24063 comp.binaries.ibm.pc.d:1791
Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bbn!humming!simcha
From: simcha@humming.UUCP (Simcha Lerner)
Newsgroups: comp.sys.ibm.pc,comp.binaries.ibm.pc.d
Subject: Re: Environment Space
Keywords: setenv environment
Message-ID: <261@humming.UUCP>
Date: 2 Feb 89 01:11:12 GMT
References: <1134@khoo.sdl.UUCP>
Reply-To: simcha@humming.UUCP (Simcha Lerner)
Organization: Kurzweil A.I. Waltham, Mass.
Lines: 30


To expand your environment, in your config.sys put an explicit
shell declaration line as follows:

shell=c:\command.com c:\ /p /e:nn

where nn is the environment size.  

In 3.1 the /e option is an undocumented feature, 
and nn is set in paragraphs (number of bytes/16).

In 3.2 and later, the /e option is documented, but 
nn is set in bytes, not paragraphs.

the max. environment is 32KB, the min is 128B, and 
the default is 620B.

For more information, look at the commands section
of your dos manual for the command called "command".
Also look in the section on config.sys for info on
shell.

[BTW: In the "old" days, various programs were around
that would patch command.com to create a larger environment.
The problem is that these programs were HIGHLY version
specific, and could corrupt the command.com of another
release of dos.]

simcha lerner
harvard!humming!simcha