Hi all guy´s. I have in my AMD 486 two configurations, one "light" without some drivers, and a full "Normal" one. In both files. I must do it to run some bulk programs like OrCAD, AutoTrax or Microcap 3, very memory demandant. In mormal, I also add some drivers like audio boards, network, and some more. The question in how to do this to make the above selection once, only in Config.sys, and to pass any kind of flag to autoexec.bat to also load the selected configuration in the config.sys, since it is the first in loading. My dos version is the MS DOS 7.10. Very thanks to all. Best Regards. Happy 2009 for all you!!! If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.

If your config.sys has, like mine, these 2 flavors: menuitem = CD menuitem = noCD Then the autoexec acts on a var called %config% A typical autoexec line: IF "%config%"=="CD" LH \util\MSCDEX.exe /D:oemcd001 /L:R ===================================== If at first you don't succeed, you're about average. M2

Mmmmm, very intresting. Where are these things documented?. Why are they so dark? Or your anwer is as result of test and fail tryes? Very Thanks M2go !!! If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.

From your response to Mechanix2Go you give the impression that you are unaware of the ability of MS-DOS to use a Startup Menu. This is a built-in capability of MS-DOS starting with version 6. You can read a basic overview at wikipedia: http://en.wikipedia.org/wiki/Config... And here is a website which provides the details on how to actually set up your own Startup Menu: http://labmice.techtarget.com/artic... You'll have to look down the page to see the details about a startup configuration menu, but it tells you everything you really need to know to get started. MS-DOS 7.1, which your using, has a few functions that the earlier versions didn't have, but it is pretty much backward compatable with all the old commands (only when older commands conflicted with newer functions were the compatibilties dropped). Final note: Microsoft stopped informing end users about the DOS startup menus with the introduction of version 7 with Win95 (7.1 with Win98), because they wanted to discourge users from using DOS and to only use Windows.

Here's a page to get you started with menuitem= in batch files. http://technet.microsoft.com/en-us/... A google search for "menuitem usage" or words to that effect will return a lot more than you want to read. Skip

Pyrolitic:, yes, you are right. I´m user of DOS from 6.22, and now 7.10 since about 5 years. But I´m not an DOS expert, I choice DOS because I hate any and all kinds of window$. And I never had the user manual from those OS, I learned some in internet, looking to other users or "try and error". In any way I can consider me a DOS expert. In the other hand, it is very bad for me to know all and not to have mothing new to learn. Thanks to people like you and other more in this forum, I could run a network, USB devices on DOS, etc. Very thanks to all you !!! If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.