INT 2A - NETWORK (Microsoft,LANtastic) - EXECUTE NETBIOS REQUEST,NO ERROR RETRY
AH = 01h
ES:BX -> NCB (see INT 5C)
Return: AL = NetBIOS error code
AH = 00h if no error
= 01h on error
SeeAlso: AX=0500h,INT 5B,INT 5C"NetBIOS"

See also: 2A04

2A01 - NETWORK (Microsoft,LANtastic) - EXECUTE NETBIOS REQUEST,NO ERROR RETRY