Int 16 Fn 79  - PCanywhere Iii - Check Status                              [R]

   AH = 79h

Return: AX = status
       FFFFh if resident and active
       FFFEh if resident but not active
       FFFDh if in Memory Resident mode
       FFFCh if in Automatic mode
       other value if not resident

See Also: AX=7B00h,INT 21/AX=2B44h