INT 6A - DECnet DOS LOCAL AREA TRANSPORT - CLOSE SESSION
AX = D000h
DH = FFh
DL = handle
Return: AX = status (see #03728)
SeeAlso: AH=D0h
(Table 03728)
Values for DECnet DOS LAT function status:
0000h successful
0001h no such session
0002h session not running, try again later