Replacing the CONFIG.SYS and AUTOEXEC.BAT files
Your DOS-compatible software includes alternative versions of the
CONFIG.SYS and AUTOEXEC.BAT files that let you select from a variety
of DOS memory-management options. Each time you start DOS, you will see
a menu that asks if you want to optimize memory for just DOS, for a DOS
program that requires maximum conventional memory, or for a DOS program
that requires maximum expanded memory, or if you want to start Windows
immediately.
To install the alternative CONFIG.SYS and AUTOEXEC.BATfiles, follow
these instructions:
1Switch to the PC environment.
2At the DOS prompt, type the following:
C:
REN CONFIG.SYS CONFIG.BAK
REN AUTOEXEC.BAT AUTOEXEC.BAK
COPY ALT_CFGS\CONFIG.APL CONFIG.SYS
COPY ALT_CFGS\AUTOEXEC.APL AUTOEXEC.BAT
3 To restart the PC environment with the alternative files installed, press Control-
Alt–[keypad] period.
If your keyboard has a Delete key, you can press Control-Alt-Delete instead.
The PC environment restarts and the new menu appears.
Modifying the CONFIG.SYS and AUTOEXEC.BAT files
You may want to modify the CONFIG.SYS file by hand to meet specific
needs. You use the DOS Edit command (or any other DOS or Windows
editor) to make the changes given in this section.
IMPORTANT
Make backup copies of your original files before you change
them. That way you still have your originals in case problems develop.
Be sure to save the file when you finish. To prevent the ROMBIOS from
becoming damaged when the PC environment is configured for 2 MB of
memory, be sure to add the underlined text to the indicated line:
DEVICE=C:\DOS\HIMEM.SYS/ TESTMEM:OFF
118 Chapter 8