Int 60  - Ftp Packet Driver - Pc/tcp Packet Driver Specification           [N]

Range: INT 20 to INT FF

Notes: The handler for the interrupt will start with a 3-byte jump
     instruction, followed by the ASCIZ string "PKT DRVR" (the
     terminating NUL is significant).
   To find the interrupt being used by the driver, an application should
     scan through interrupt vectors 20h to FFh (60h through 80h for
     v1.09- of the specification) until it finds one with the "PKT DRVR"
     string.
   AH values of 80h to FFh have been reserved for user-defined additions.