A virtual DOS machine for PCs from Tao Software Development Company, Ramat Hasharon, Israel. Using the built-in Virtual 8086 Mode of the x86 CPU, ExDOS enables DOS applications that used to print via the parallel port to run in Windows XP, 7 or 8 and print via USB or network connections. ExDOS fills the gap for the many people who must continue to run DOS programs in Windows PCs. See Virtual 8086 Mode
dBASE III in Windows Vista
This dBASE order entry program running in an ExDOS virtual machine in Vista is able to print via ExDOS to the attached USB printer. DOS was written to print via the parallel port (LPT1), not USB.