Model: YAMAHA OPL3-SA Sound Controller
Operating System: Windows 95 & Windows 98 (Note: might work with other versions of this os.)
Before downloading: Run Free Scan for Instant Driver Updates
In essence, this will get rid of the warnings that VYMIXD.VXD & VSGM.VXD are old files.
Run the uninstall program first.
Install via Add New Hardware.
Remove drivers via Device Manager