INT 6D - DECnet DOS (before 2.1) - DATA LINK LAYER PROGRAM
	AH = function
	???
Return: ???
InstallCheck:	test for a signature area immediately preceding the interrupt
	  handler (see #03734)
SeeAlso: INT 69/AH=0Ah,INT 6C"DECnet",INT 6E"DECnet"
Index:	installation check;DECnet DOS Data Link Layer


Format of DECnet DOS signature area:
Offset	Size	Description	(Table 03734)
 -5	BYTE	major version number
 -4	BYTE	minor version number
 -3   3 BYTEs	signature (ASCII "DLLsee Dynamic Link Library")