Very clean DOS installation?

August 25, 2010 at 12:01:41
Specs: Windows XP
I'm trying to install this machining software on an old pentium based computer for my neighbor. In the software installation guide, it says:
"Proper operation of your machine depends on you having a very clean DOS installation. This is critical!......Improper computer setup will cause lock-ups, unreliable operation, and possibly malfunctions! These setup items are not optional. You must have an extremely clean CONFIG.SYS & AUTOEXEC.BAT."
It then continues to say "No device drivers other than HIMEM.SYS, DOD=high, Files=xx, Buffers=xx....No TSR's, network drivers, mouse drivers, disk caches, ramdrives, print buffers, etc....No DOS Shells, Windows installations, EMM386, or other drivers/TSR. Take 'em all out"
My question is how do I do this? I'm not even sure where to start. So far, I have FreeDos installed on the computer and thats pretty much it. Any help would be greatly appreciated.

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August 25, 2010 at 12:20:59
It would be DOS=HIGH not DOD=HIGH.

So himem.sys, dos=high and the files and buffers lines are OK, but nothing else?

Post back contents of your config.sys and autoexec.bat. Just type
more c:\config.sys and enter and write down what it says. Then do
more c:\autoexec.bat and enter and write everything down. The post it all in your next reply here.

If you get 'invalid command or file name' replace the word 'more' with 'type'.

Real men don't use AntiVirus; they just reformat

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August 25, 2010 at 13:57:17
FreeDOS is loosely compatible with MS-DOS version 5, but it has many foibles,

Personally would recommend MS-DOS 6.xx, what country do you live in ??

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August 26, 2010 at 15:41:27
Sounds like a pretty scary installation if you cannot have any device drivers loaded into upper memory. Installations like this must be rare. But sometimes you gotta do what you gotta do.

1. Make sure your boot disk works or if you don't have one go to and get one for your version of DOS and test it.

2. Copy your current config.sys and autoexec.bat and rename them both to autoexec.bak and config.bak and have them reside in the same directory. If those names are already taken, use .cow or whatever. Also, copy them to a diskette in case.

3. Follow the directions for the clean boot.

4. If you cannot boot, get your boot disk into the floppy drive and restart. You should be able to navigate to the C: drive and delete or rename the autoexec and config files you were instructed to change. Then rename the autoexec.cow and config.cow to their proper names. If you have trouble, you can use help from the bootdisk for the appropriate commands for renaming and deleting files.

Caution is the word to remember. Check and recheck your instructions. This kind of thing is usually harmless, but even I would think twice about installing a program that requires such a boot. Things can go wrong. Granted, it's not the same white knuckle ride as BIOS flashing is, but boot sector tampering is still a serious matter - unless you know what you are doing.

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