21F0 INT 21 - DoubleDOS - MENU CONTROL
21F0 INT 21 - VIRUS - "Frere Jacques" - INSTALLATION CHECK
21F000 INT 21 - Novell NetWare - WORKSTATION - SET PREFERRED CONNECTION ID
21F001 INT 21 - Novell NetWare - WORKSTATION - GET PREFERRED CONNECTION ID
21F002 INT 21 - Novell NetWare - WORKSTATION - GET DEFAULT CONNECTION ID
21F003 INT 21 - Novell NetWare - PRINT SERVICES - GET LPT CAPTURE STATUS
21F004 INT 21 - Novell NetWare - WORKSTATION - SET PRIMARY CONNECTION ID
21F005 INT 21 - Novell NetWare - WORKSTATION - GET PRIMARY CONNECTION ID
21F078 INT 21 - VIRUS - "Burgler/H" - INSTALLATION CHECK