 Driver support was available under DOS, Microsoft Windows 3.x, Windows NT 3.5 and 4.0, Windows 9x, OS/2 and Linux (within Open Sound System).It was also claimed to work under Windows ME or 2000/XP by using Windows 9x or Windows NT 4 / 2000 RC1 drivers.Under DOS, a terminate and stay resident driver called "mvsound.sys" had to be used in order to initialize the card although most programs did not use this driver but rather programmed the PAS chip directly.