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747IPC
The 747 Inter-Process Communicator opens up PS1 for access by the outside world. It extends PS1 functionality chiefly by enabling network connectivity. In a sense, it is for PS1 what FSUIPC is for the Microsoft flight simulator. Author is Ivan Ngeow <rimb1991(at)yahoo(dot)com>. Web site is http://open744.sourceforge.net/747ipc.html .
For most people, the fully automated all-in-one 747IPC Installer is the obvious choice to acquire 747IPC.