Int 67 Fn DE03  - Virtual Control Program Interface - Get Number Of Free   [E]

   AX = DE03h

Return: AH = 00h  successful
       EDX = number of free 4K pages
   AH nonzero: failed

Notes: returns total number of pages available to ALL tasks in system
   also available in protected mode by calling the protected-mode VCPI
     entry point (see AX=DE01h,#3335)

See Also: AX=DE04h