Model: VIEWTOP 3D Vulcan
Operating System: Windows 98SE (Note: might work with other versions of this os.)
Before downloading: Run Free Scan for Instant Driver Updates
I received this driver from Emiel of Nederland, thank you very much Emiel!
Unzipping gets you three subdirectories /vt/Win95, /vt/Win98, and /vt/winnt.
I had no trouble at all installing from the Win98 dir on my 98SE system, and it worked perfectly.