vDosPlus (formerly vDos-lfn) is a free general-purpose non-gaming DOS emulator running on Windows, based on vDos and DOSBox. vDosPlus is designed to run non-gaming DOS applications in all current Windows versions. NTVDM (NT Virtual DOS Machine) is included in 32-bit Windows, but NOT in 64-bit Windows. However, most today’s Windows is now 64-bit, and to run DOS programs you need a DOS emulator. vDosPlus is exactly for this purpose
vDOSplus website