Operating System: Windows 95 (Note: might work with other versions of this os.)
These are drivers from the original floppy for the AOpen O-35G Optical 5 button, 2 scroll wheel "4D" mouse.
Floppy label shows no specific operating system support. INF file reveals support for Windows 98, Millenium and 2000. I have personally installed these on Windows XP Professional with no problems whatsoever. There is a folder on the disk for NT4.0 and DOS.
I would think that the drivers would work for Windows 95 and Windows NT 3.51.
Included along with an INF is a setup program to install the software to make the second scroll wheel work properly. Installation is suggested.