INT 7C - SK-UPPS Data Link Interface 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. - GET PROTOCOL LIST
	AX = 000Bh
	ES:DI -> protocol ID buffer
	CX = number of 2-byte protocol IDs that may be stored in buffer
Return: AX = completion code (see #03846)
	CX = number of active protocols (regardless of value returned in AX)
	protocol ID buffer filled with active protocol IDs
Program: SK-UPPS is the Schneider & Koch Universal Portable Protocol Stack,
	  which provides an 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. on top of its Data Link Interface, allowing the
	  use of any of several network transport layers
Note:	If the buffer supplied is too small, CX still contains the total number
	  of active protocols and the buffer has been filled until full.
SeeAlso: AX=000Ch,AX=0014h