Execute this .exe file from a win95 or win98 MS-DOS prompt and it will inflate the files to a folder called "disk1".
Go to "add printer" in Win 95 or Win 98 and click on "have disk". Browse your hard disk until you find the "disk 1" folder that the program created and click OK and then Next. Select the Epson Stylus 820 printer and you should be up and running.
Remember that the driver includes a "calibrate" utility that you should use to calibrate your printer for best results!