Int 2F Fn 48C5  - Pced/assoc - Get Version                                 [U]

   AX = 48C5h
   BL = 01h

Return: AX = 0000h if installed
       BX = binary ASSOC version (BL = major, BH = minor)

Note:  chains if BL > 02h on entry

See Also: AX=48C0h,AX=48C5h/BL=00h,AX=48C5h/BL=02h