vDos is derived from the DOSBox project; it allows you to run DOS programs in Windows conveniently.
DOSBox is targeted at gaming and available for many operating systems. If you consider using DOSBox for a database application in a multi-user setting, DONâ€™T, youâ€™ll mostly end up with corrupted data.
vDos is for serious (mainly text mode) DOS applications only.
It lacks many of the hardware emulations of DOSBox (no joysticks, basic VGA...). Instead, it adds a live file system, file/record locking, Windows printing, a scalable screen font and more.
You should be able to run your DOS application quickly, safely and conveniently.