Operating System: Windows 95 (Note: might work with other versions of this os.)
Before downloading: Run Free Scan for Instant Driver Updates
Yamaha OPL3-SAX Driver. Goes with Opl3sa.drv, vopl3sa.vxd, and vsgm.vxd. I uploaded all four unzipped. The four files fit on a 3.5 disk. Extracted from Smitty's zip files. Got my card working fine.