vDos is a DOS emulator designed to run old DOS programs on modern Windows operating systems, particularly useful for 64-bit versions where the built-in NTVDM (NT Virtual DOS Machine) is not available.

Q: I want to run Windows XP programs on my new PC. Is Windows 7 Professional's XP mode the best way to ensure that? A: It's certainly one of the more expensive ways -- and you might not need it at all ...