Port 2 Drivers v1.1 by Spike Dethman, Chris Hawley & David Durran (dated August 1991) - This is a set of three drivers for GEOS that work on joystick port 2.  The first is the standard Joystick / Commodore 1350 Mouse driver, the second is a proportional 1351 Mouse driver, and the third is an accelerated proportional 1351 Mouse driver.  Documentation is included in the archive.