This are the (new) Support Forums for FSUIPC and related products.

These forums replace the old support forums which have been running for 20+ years. The old forums contain a wealth of information on all FSUIPC products, and are still available (until the end of the year) for read-only here.

At the moment these new forums are quite empty – I will be updating the FAQ section and copying across the User Contributions from the old forums in the next few months.

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[Sticky] FSUIPC WebSocket Server - START HERE

Posts: 2

Paul Henty

Topic starter

November 4, 2025 7:20 pm

(@paul-henty)

Joined: 1 week ago

FSUIPC WebSocket Server is a program that enables reading and writing Flight Sim data via FSUIPC over WebSocket connections.

You can use any programming language or technology that allows the sending and receiving of data to/from Web Sockets.

The WebSocket Server runs on the Flight Sim PC and responds to Web Socket requests from multiple clients.

Instructions on how to use the WebSocket Server, full API documentation and code examples in Javascript, VB.NET and C# are on the website:

http://fsuipcwebsockets.paulhenty.com/

Main Features:

The server program runs on the Windows PC that is running Flight Sim
Communication with the Flight Sim via FSUIPC by Pete and John Dowson or XPUIPC
Can be used with Microsoft Flight Sims from Version 2004, Prepar3d, and X-Plane
Client/Server communication is over a bi-directional WebSocket connection
Protocol is based on the exchange of JSON strings
Clients can be written in any technology that supports WebSockets and can encode/decode JSON
Supported by modern browsers
.NET DLL available on NuGet to make it easy to talk to the server from .NET applications