Dgvoodoo Windows 98 Link

Old games tied their game physics to the CPU clock speed. On a modern multi-core processor, the game might run at 10x speed. Use the dgVoodoo control panel to limit the frame rate to 60 FPS, or use an external tool like RivaTuner. Black Screens or Crashing

(specifically the older version 1.x) is the primary tool used for Windows 98 environments. Understanding dgVoodoo for Windows 98 The Original dgVoodoo (v1.x) : While the modern dgVoodoo 2