I want to save people some pain and suffering here. First up, Jaz drives work perfectly in Windows 7, 8 or 8.1 64bit operating systems. I believe it will work in Windows 10, but I haven't tried that yet.
Additional drivers are not required. What comes with Windows "out of the box" works. In Windows 8.1 I am using Microsoft Driver File Version 6.3.9600.16384. This information is not that important, becuase theses are generic Microsoft Drivers that ship with the OS.
What IS important is that you have a SCSI Host Adapter (card) that has a driver for Windows 64bit
. If you dont have a working SCSI card in Windows 64bit (any version), things are not going to work regardless of what you try for the Jaz drive.