Hardware Compatibility with MS-DOS 6.22
If you upgraded your system from MS-DOS 6 or 6.2, your system
uses its Hardcard drive as its startup drive, and you want to use
DoubleSpace on that drive, see See below, part C.
For additional Hardcard information, see the following:
a) Hardcard II
If you can't use Plus Development Hardcard II or Hardcard
II XL when running EMM386.EXE, specify the exclude (x=)
switch to prevent EMM386 from conflicting with the card's
To configure EMM386, run MEMMAKER.
b) Hardcard 40 or Passport
If you are using Hardcard 40 or a Passport removable
disk, and you have a DEVICE command in your CONFIG.SYS file
for PLUSDRV.SYS, disable or remove the DEVICE command.
Then run MS-DOS 6.22 Setup. After Setup is complete, reenable or
restore the DEVICE command for PLUSDRV.SYS. Make it the last line
in the file.
c) If you upgraded your system from MS-DOS 6 or 6.2, installed DoubleSpace
on your Hardcard, and are now unable to access your
newly compressed drive, try the following:
1) Add a DRVSPACE /MOUNT command to your AUTOEXEC.BAT file to mount
the compressed volume file on the Hardcard every time you start
2) Or, ensure that there is at least one device driver (for example,
ANSI.SYS) loaded in your CONFIG.SYS file AFTER the ATDOSXL.SYS
driver but BEFORE the DRVSPACE.SYS driver.