old DOS floppy disk, printer, sound and comms utilities, and of course games.Īlso, some of the oldest AC'97 compatible onboard soundcards were Sound Blaster Pro compatible (some even had an optional SB16 compatibility option in the BIOS!), and a DOS game running through an old NTVDM could sometimes be allowed to "bang" close enough on the hardware to "just work". Generally, the more a game or app "bangs on the hardware" directly, the less probable it is that it will work with NTVDM: newer versions intercept and suppress many more direct-access attempts than older ones, something which is quite obvious with e.g. CyberBykes or Shadow Racer VR from 1996 will play with the highest VESA resolution and full sound if VDMSound is used), but not e.g. Installing VDMSound could restore Sound Blaster support and allow running some late DOS titles "directly" at full speed (e.g. I recall that SP0 or SP1 XP installations could half-assedly play Wolf3D and Doom "directly" with full General MIDI music and even Sound Blaster SFX on most systems, but this became pretty much impossible after SP2, to the point that it was simply ruled out as a viable option. There had been a drastic change (for the worse) in NTVDM's compatibility starting from XP SP2. On one of my older XP machines, NTVDM plays Doom flawlessly - something that many can't say for themselves. Results vary drastically on different systems when it comes to NTVDM.
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