5B INT 5B - IRQ11 relocated by DESQview 2.26+
5B INT 5B - IRQ3 relocated by DoubleDOS
5B INT 5B - PC cluster adapter - RELOCATED INT 19
5B INT 5B - AT&T Starlan Extended NetBIOS (variable length names)
5B INT 5B - Microsoft Network Transport Layer Interface
5B INT 5B - used by Alloy NTNX
5B INT 5B - ISOLAN Multi Protocol Software
5B INT 5B C - TI Professional PC - KEYBOARD MAPPING HOOK
5B5254DL04 INT 5B U - SitBack v3.02R - GET ???
5B8485DL70 INT 5B U - SitBack v3.02R - INSTALLATION CHECK
5B8485DL71 INT 5B U - SitBack v3.02R - SET ??? FLAG AND GET ??? ADDRESS
5B8485DL72 INT 5B U - SitBack v3.02R - CLEAR ??? FLAG
5B8485DL73 INT 5B U - SitBack v3.02R - ???
5B8485DL74 INT 5B U - SitBack v3.02R - ???
5B8485DL75 INT 5B U - SitBack v3.02R - ???
5B8485DL76 INT 5B U - SitBack v3.02R - ???
5B8485DL77 INT 5B U - SitBack v3.02R - SET ??? FLAG
5B8485DL78 INT 5B U - SitBack v3.02R - GET RESIDENT DATA SEGMENT
5B8485DL79 INT 5B U - SitBack v3.02R - GET DTA
5B8485DL7A INT 5B U - SitBack v3.02R - TOGGLE ???