Apple 640 manual Replacing the CONFIG.SYS and AUTOEXEC.BAT files

1

2

3

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.BAT files, follow these instructions:

Switch to the PC environment.

At 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

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 ROM BIOS 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