Operating System: Windows 95 & Windows 98 (Note: might work with other versions of this os.)
Once installed, you may need to set the proper emulation on your printer. To do so, hold the LOAD/PARK button down when turning on the power. The printer will then show you the current emulation. This can be toggled using the FONT button. When set correctly, Save by pressing the LOAD/PARK button again.
I believe this file also includes Win3.1 drivers.