6B INT 6B - DECnet DOS - PORT DRIVER
6B INT 6B - VIRUS - "Saddam" - ORIGINAL INT 21h VECTOR
6B INT 6B C - HP Vectra AT - IRQ19 - RESERVED HARDWARE INTERRUPT
6B0000 INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - BUFFERED WRITE
6B0100 INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - BUFFERED READ
6B02 INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - INSTALL CHECK
6B0600 INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - CONTROL
6B0700 INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - GET STATUS
6B08 INT 6B - TelAPI - CHECK FOR BREAK SIGNAL
6B10 INT 6B - NPC NCSI EXTENDED SERIAL I/O - GET STATUS
6B11--DX0001 INT 6B - NPC NCSI EXTENDED SERIAL I/O - ALLOCATE A VIRTUAL CIRCUIT
6B12 INT 6B - NPC NCSI EXTENDED SERIAL I/O - VIRTUAL CIRCUIT STATUS
6B13 INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE REQUEST/REPLY SERVICE NAME
6B14 INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE SERVICE ADDRESS
6B15 INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE VIRTUAL CIRCUIT CONFIG
6B16 INT 6B - NPC NCSI EXTENDED SERIAL I/O - LOG AND/OR INITIALIZE VIRTUAL CIRCUIT
6B17 INT 6B - NPC NCSI EXTENDED SERIAL I/O - DISCONNECT A VIRTUAL CIRCUIT
6B18 INT 6B - NPC NCSI EXTENDED SERIAL I/O - WRITE DATA ON A VIRTUAL CIRCUIT
6B19 INT 6B - NPC NCSI EXTENDED SERIAL I/O - READ DATA ON A VIRTUAL CIRCUIT
6B1A INT 6B - NPC NCSI EXTENDED SERIAL I/O - RECEIVE STATUS
6B1B INT 6B - NPC NCSI EXTENDED SERIAL I/O - TRANSMIT STATUS
6B1C INT 6B - NPC NCSI EXTENDED SERIAL I/O - CLEAR RECEIVE BUFFER
6B1D INT 6B - NPC NCSI EXTENDED SERIAL I/O - TRANSMIT BUFFER CONTROL
6B1E INT 6B - NPC NCSI EXTENDED SERIAL I/O - ISSUE CONTROL REQUEST
6B1F INT 6B - NPC NCSI EXTENDED SERIAL I/O - EXTERNAL STATUS
6B20 INT 6B - Connection Manager CLIENT.EXE - ???
6B21 INT 6B - NPC NCSI EXTENDED SERIAL I/O - QUERY NAME SERVICE
6B6B INT 6B - Tandy SCHOOLMATE PLUS - API