Int 15 Fn 44F1  U - Toshiba Laptops - Security Level Check                 [B]

   AX = 44F1h
   DS:DX -> byte with 00h ???

Return: ???

Note:  used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
     between USER and SUPERVISOR security level

See Also: AX=44F2h,AX=44F3h