SoundFX NT software. "As delivered, Windows NT / W2K provides a DOS box for running 16 and 32 bit DOS mode programs but due to NT's security model, direct peripheral access is denied. Most DOS multimedia titles (games) provide sound by directly accessing the sound card and as a result although many can be run under NT, until now none have been able to produce sound and hence lose a great deal of playability. SoundFX provides a complete emulation of a SoundBlaster 16 card and hence enables old favourites such as Doom (1 & 2), Heretic, Duke Nukem (2 & 3D) etc to be run with sound under NT / W2K."
VDMSound is a program that overcomes what has probably been the most exasperating limitation of DOS boxes since Windows NT -- sound support. VDMSound is an open, plug-in oriented platform that emulates an MPU-401 interface (for outputting high-quality MIDI music), a SoundBlaster compatible (SB16, SBPro 2, SB2, SBPro, etc.) "DSP" implementation (for digital sound effects and other PCM audio), as well as a standard game-port interface (for playing games with joystick support). In development are AdLib support (for FM-synthesis music), advanced joystick support, and possibly VESA support. VDMSound works on Windows NT 4.0, Windows 2000 and Windows XP.