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")