Int 13 Fn 8EEF  - Hyperdisk V4.01+ - ???                                   [c]

   AX = 8EEFh

Return: CF set
   AX = CS of HyperDisk resident code
   ???

Note:  identical to AX=8EEEh in HYPERDKX v4.21-4.30

See Also: AX=8EEDh,AX=8EEEh,AH=EEh