Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!ogicse!milton!sumax!halcyon!ralphs From: halcyon!ralphs@seattleu.edu (Ralph Sims) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: COMMAND.COM patch for environment - I'm not kidding!!!!! Message-ID: Date: 15 Mar 91 18:40:37 GMT References: <2860@sparko.gwu.edu> Organization: The 23:00 News and Mail Service Lines: 37 timur@seas.gwu.edu (The Time Traveler) writes: > About two weeks ago, I asked for a patch from PC-DOS 4.01's COMMAND.COM > to allow a larger default environment. However, much to my dismay, all > I got was replies from a dozen idiots telling me to use the command-line > switch. For DOS 4.0, and maybe 4.01... debug command.com -e 3C2A 20 -w -Q Before you do this, dump offset 3C2A and see if it returns OAh. If so, the patch should work. Subsituting 2F for 20 in the above patch should yield 752-bytes of environment (DROP THE TRAILING 0 FROM 02F0h). This information is liberally stolen from the latest issue of PC MAGAZINE, March 26, 1991, page 390. I'd suggest looking at a copy and check this over, to make sure I didn't miss something drastic. The other offsets for various versions of DOS: 2.0 - 0BCF 2.1 - 0BCF 3.0 - 0F2C 3.1 - 0D11 3.2 - 0D4F 3.3 - 0EB8 -- halcyon!ralphs@seattleu.edu The 23:00 News and Mail Service - +1 206 292 9048 - Seattle, WA USA +++ A Waffle Iron, Model 1.64 +++