Juniper Systems Allegro DOS Manual - Manual (Page 196)

Page 5-36 MS-DOS
The following special CONFIG.SYS commands are used only to define
multiple configurations within the CONFIG.SYS file. For more
information about defining multiple configurations, refer to the DOS
help in the Lynx Help menu.
Include
Menu color
Menudefault
Menuitem
Submenu
The CONFIG.SYS file can also contain the following special characters:
; Specifies that the current line is a descriptive comment and should
not be carried out. Insert this character at the beginning of the line.
(You can also insert a comment by using the REM command.)
? Specifies that DOS is to ask for confirmation before carrying out the
current command. Insert this character immediately after the
command you want to prompt for, without any intervening spaces,
but before the equal sign (=). For example, to have MS-DOS ask for
confirmation before carrying out the DOS=HIGH command, you
would change the command to read: DOS?=HIGH. To have MS-DOS
ask for confirmation before carrying out the DEVICEHIGH /
L:1,7280=MYFILE.SYS command, you would change the command to
read as follows:
DEVICEHIGH? /L:1,7280=MYFILE.SYS
Default CONFIG.SYS File on the Allegro
The CONFIG.SYS file is stored in the root directory of the C: drive. A
backup copy is also stored in the C:\UTIL directory. The file is
configured as follows:
device = C:\DOS\HIMEM.SYS/testmem:off
device = C:\DOS\EMM386.EXE on x=a000-c1ff x=e000-efff
noems ram=c200-dfff
dos = high,umb
devicehigh=c:\dos\power.exe off
buffers = 20
files = 20
break = on
lastdrive = g