From: "Matthias Paul" Organization: Rechenzentrum RWTH Aachen To: opendos AT delorie DOT com Date: Wed, 22 Dec 1999 16:34:22 +0100 Subject: Re: Problems with SciTech Display Doctor X-mailer: Pegasus Mail v3.22 Message-ID: <6C3F350329A@reze-1.rz.rwth-aachen.de> Reply-To: opendos AT delorie DOT com On Tue, 21 Dec 1999 Dave Dribin wrote: > Has anyone got SciTech Display Doctory working on DR-DOS? Sorry, I don't know this software. But in general, if you're getting memory errors there's a multitude of possible reasons and since DR-DOS provides much more features than MS-DOS how to optimize the memory configuration, it might be more difficult, if you're new to the configuration switches provided by the DR-DOS memory managers. A good thing to start with is to disable EMM386's support for DPMI and multitasking: /DPMI=off /MULTI=off. You can also try to exclude a larger region of upper memory from usage as UMB. Also try to disable usage of the video memory address space /VIDEO=off. Depending on your AddOn adapters moving the EMS-page frame (if you are using EMS) may help too. If any of this helps, it does not mean, you would have to permanently disable these features, but it's good to isolate the cause for the problem. Try HIMEM.SYS instead of EMM386. If you have access to it, it cannot harm to try MS-DOS HIMEM+EMM386 for troubleshooting (but many of the switches are different). Try to change the load-high order of resident drivers, try to subsequently not load high TSRs, and eventually remove them. Knowing the results of these tests, we might be able to find a working configuration, that is still feature-rich and optimized. Matthias PS: I think it's time to wish all the remaining DR-DOS fans a Merry Christmas, peaceful holidays and good luck for the year 2000 and beyond. My personal hope regarding this list is, that the next year will bring some new action into DR-DOS' life - even on the desktop. We don't need to worry for Linux, this steam hammer is unstoppable now. I speak only for myself, but I think, opening (some of) the DR-DOS sources to the public could cause a prosperous technology exchange between Linux and DR-DOS (and FreeDOS), whereby all could only profit - DOS isn't that old fashioned, as some people think. Multi-millions of people use it every day without knowing it... There's a proverb in Germany: "Alle kochen nur mit Wasser." [Everyone uses water for cooking.] I for myself have (almost) ready many system extensions for (DR-)DOS, which I would like to polish for publishing once DR-DOS would have become really open... ------------------------------------------------------------------- Matthias Paul, Ubierstrasse 28, D-50321 Bruehl, Germany eMail: Web : http://www.rhrz.uni-bonn.de/~uzs180/mpdokeng.html -------------------------------------------------------------------