Define verb FDHOSTremot
  Image sys$system:fdhostremot.exe
  Parameter p1,prompt="FDn:",value(required,type=$device),label=UNIT
  qualifier ASSIGN
  qualifier DEASSIGN
!  qualifier CLEAR
! Note: CLEAR switch is for FDHOST.MAR only. It just zeroes the
! reference count of the FD: unit in case aborting control tasks
! left this nonzero.
!; Uses FDHOST image to create a memory disk for fd0: (test case) or generally...