Int 69  - Zenith At BIOS - ???
 Int 69 Fn 0100  - Decnet DOS Cterm - Installation Check
 Int 69 Fn 0101  - Decnet DOS Cterm - Send Byte
 Int 69 Fn 0102  - Decnet DOS Cterm - Read Byte
 Int 69 Fn 0103  - Decnet DOS Cterm - Status
 Int 69 Fn 0104  - Decnet DOS Cterm - Decnet Status
 Int 69 Fn 0105  - Decnet DOS Cterm - Open Session
 Int 69 Fn 0106  - Decnet DOS Cterm - Close Session
 Int 69 Fn 010A  - Decnet DOS Cterm - Get Session Control Block Size
 Int 69 Fn 010B  - Decnet DOS Cterm - Get Decnet Socket
 Int 69 Fn 010F  - Decnet DOS Cterm - Deinstall Cterm
 Int 69 Fn 0A  - Decnet DOS 2.1+ - Data Link Layer
 Int 69 Fn 4001  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 4002  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 4101  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 4102  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 4103  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 4104  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 42  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 43  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 44  - 10net V5.0 - Syssvc.com - ???
 Int 69 Fn 49  - 10net V5.0 - Syssvc.com - Bug
 Int 69 Fn 6996  - Isr.com V1.00 - Specify Interrupt Handler
 Int 69 Fn FF  - 10net V5.0 - Syssvc.com - Signal System Error