Just a warning that the installer in this package has a bug in it where it deletes the mouse.hlp file before copying it to the x:\os2\help directory, so the installation fails with a DosCopy error. I was able to manually copy this file. I have not been able to replace the MULTIPT.EXE program as the program is in use. But the new MULTIPT.EXE is the exact same file size as the previous one, and the mouse seems to work fine with the old version of that program.