Lantastic

LANtastic is a peer-to-peer local area network (LAN) operating system for DOS, Microsoft Windows and OS/2. LANtastic supports Ethernet, ARCNET and Token Ring adapters as well as its original twisted-pair adapter at 2 Mbit/s.

Its multi-platform support allows a LANtastic client station to access any combination of Windows or DOS operating systems, and its interconnectivity allows sharing of files, printers, CD-ROMs and applications throughout an enterprise. LANtastic was especially popular before Windows 95 arrived with built-in networking and was nearly as popular as the market leader Novell at the time.