CONFIG.SYS
<operating system> A
text file containing special system configuration commands.
It is found in the
root directory on an
MS-DOS computer, typically on drive C (the
hard disk).
It is read by
MS-DOS at boot time, after the setup has been read from CMOS RAM and before running
AUTOEXEC.BAT.
It can be modified by the user.
Some example commands which CONFIG.SYS might contain are:
DEVICE=C:\DOS\HIMEM.SYS /testmem:off
Load the
extended memory manager.
DEVICE=C:\DOS\EMM386.EXE RAM
Load the
expanded memory manager.
BUFFERS=10,0
Specify memory for disk buffers.
FILES=70
Set the number of files that can be open at once.
DOS=UMB
DOS is located in UppeMemoryBlock.
LASTDRIVE=Z
Disk drives are A: to Z:.
FCBS=16,0
Set the number of
file control blocks.
DEVICEHIGH /L:1,12048 =C:\DOS\SETVER.EXE
Report the DOS version to older programs.
DOS=HIGH
DOS should maintain a link to
UMB.
COUNTRY=358,437 C:\DOS\COUNTRY.SYS
Set the
country code for some programs.
STACKS=9,256
Set dynamic stacks for hardware control.
SHELL=C:\DOS\COMMAND.COM C:\DOS\ /E:1024 /p
Set the location of the
command interpreter.
