21B3 INT 21 - VIRUS - "Requires" - INSTALLATION CHECK
21B300 INT 21 U - Novell NetWare - CHECK LIP/PACKET SIGNING/IPX CHECKSUM SUPPORT???
21B301 INT 21 U - Novell NetWare - CHECK SIGNATURE LEVEL???
21B302 INT 21 U - Novell NetWare - START PACKET SIGNING
21B304 INT 21 U - Novell NetWare - SET SIGNATURE LEVEL
21B306 INT 21 - Novell NetWare - RENEGOTIATE SECURITY LEVEL