Int 2F Fn FB00  U - Jot-it! V1.50 - Installation Check                     [U]

   AX = FB00h

Return: AX = FFFFh if installed
       BX = version (BCD, BH=major, BL=minor)

See Also: AX=FB03h"Jot-It",AX=FB01h"Jot-It"