INT 62 - XFS v1.76 - FILTERED PACKET DRIVER API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes.
Program: XFS is a shareware Network File System client by Robert Juhasz
Desc:	XFS requires a packet driver to operate.  Since it does redirections,
	  etc., it provides its own packet driver entry point, changing the
	  signature string of the original packet driver to "XKT DRVR" so that
	  it will no longer be found by the packet driver installation check
InstallCheck:	scan for the signature string "PKT DRVR" three bytes past the
	  interrupt handler (the same as that for the packet driver
	  specification)
Range:	INT 61 to INT 66, selected by scanning for two consecutive free
	  vectors and hooking the second
SeeAlso: INT 60"Packet DriverAny one of the numerous drivers conforming to FTP Software's Packet Driver Specification, which provides a hardware-independent network interface.  See also NDIS, ODI. Specification",INT 61"XFS"