This is an extremely hard to find driver for the Horizon 64+ with the Falcon64 chipset. I searched high and low for this driver! Most of the Horizon 64s have the tsing chipset and the drivers are not compatible.
unzip the file into it's own folder it will create two more folders -- Disk1 & Disk2 copy the contents of Disk1 onto a floppy disk & repeat for the second disk. An alternative is to point the harware installation wizard to the folder that you unzipped the file into.
If you have a hard time getting Windows 95 to recognize this driver, copy the stbdisp.inf file into the Windows/Inf directory and try again.