Rodent
RODENT.SYS is a mouse driver which supports most mice. It has support for CalComp 2x00 digitizer, CalComp 3300 digitizer, CalComp 9x00 digitizer, CalComp Wiz digitizer, Inport mice, Felix mouse, Logitech serial mouse. Microsoft serial mouse.Mouse Systems mouse, PS/2 mice. Includes source code.
License
Public Domain, Source code available.