During setup, the Microsoft Mouse 8.0 driver installs the following
three lines to the AUTOEXEC.BAT file:
Mouse BallPoint Mouse
SET PATH=%PATH%;C:\MOUSE SET PATH=%PATH%;C:\BALLPT
SET mouse=C:\MOUSE SET mouse=C:\BALLPT
The "set mouse=" line uses environment space, and if insufficient
memory is available, the system stops (hangs).
If you have insufficient memory available, do one of the following:
• Remark out the "set mouse=" line. For example:
rem set mouse=c:\mouse
rem set mouse=c:\ballpt
NOTE: If you choose this option and Windows is on your system,
the MOUSE.INI file MUST be under the \MOUSE (or \BALLPT)
Try to increase the environment space by increasing or
adding the following line:
shell=c:\dos\command.com c:\dos\ /e:256 /p
Where /e:nnn is the environment size (32K maximum). In this
example, COMMAND.COM is found under the DOS subdirectory.
After doing either of the above, reboot the system.
PATH Statement Problems
If the PATH statement is too long, it causes problems with the system
during startup. The PATH statement can have a maximum of 128 characters
Edit your PATH statement as follows:
• If the system hangs, boot from drive A with an MS-DOS boot disk.
If you don't have an MS-DOS boot disk, press CTRL+C during startup to
break out of the system startup (AUTOEXEC.BAT) before it hangs. This
needs to be done at the correct moment, so it may take a few tries
• Once the system is up, go to the AUTOEXEC.BAT file and do one of the
• Remove the mouse from the PATH statement. Removing the
mouse from the PATH will make the mouse accessible only from
the mouse subdirectory. For example, with the mouse in the
PATH, the MOUSE OFF command can be typed from anywhere in MS-DOS.
Removing it means that MOUSE OFF can only be entered while in
the mouse subdirectory.
• Append the Microsoft Mouse PATH statement with the SET command
rather than including it at the end of the PATH statement. For
NOTE: The original PATH must still be fewer than 128 characters.
The appendage and the PATH, collectively, may be over 128
Reboot the system.