I've been there, this doesn't work well at all. Actually since Windows NT the DOS subsystem is already an emulation, and it's not that good. DOS applications worked really well up to Windows ME, but with NT/XP/7 it got worse.

vDos was overall much better than running DOS applications directly on Windows. Only drawback was performance. It never ran as fast as on a Pentium III with Windows 98, but still much faster than the original hardware it was designed for (~30 mhz 80386).

Our application was designed for Novell NetWare, back then it even supported row/table locks for dBase files on the shared network drive. This didn't work with Windows NT anymore. But vDos brought back the feature to Windows 10 and SMB shares!