reactos/subsystems/mvdm/README.txt

   1 Multiple Virtual DOS Machines - Directory description
   2 =====================================================
   3
   4 - config : Miscellaneous configuration files.
   5 - dos    : All 16-bit DOS files (kernel, drivers, apps...) are placed here.
   6 - ntvdm  : NT Virtual DOS Machine.
   7 - samples: Sample programs for NTVDM.
   8 - vdmdbg : Virtual DOS Machine debug helper DLL (from Wine).
   9 - wow16  : All Win16 thunk files are placed here.