Int 67 Fn 42  - LIM EMS - Get Number Of Pages                              [m]

   AH = 42h

Return: AH = status (see also AH=40h)
       00h function successful
       BX = number of unallocated pages
       DX = total number of pages
BUG:   DOS 6.0 EMM386.EXE causes a system lock-up or reboot if in AUTO mode
     when this call is made; use AH=46h to ensure that EMM386 is ON
     before making this call

See Also: INT 2F/AX=2702h