Via has released some new sound drivers for there VT686A/B and VT8321 onboard sound chips. They are dated 12 March 2002 with a new readme, including instructions for playing sound in DOS.
News source: VIA Arena
Download: VT686A/B and VT8321 for Windows 9X/2K/ME/NT/XP
Download: VT686A/B and VT8321 for Linux RedHat 7.1