I desperately need a websocket implementation for Acknex.
There are several libraries, like this one for C:
http://libwebsockets.org/trac/libwebsockets
But I'm not a good enough coder to pull this off.

Unfortunatelly this is for a noncommercial educational project, so I can't shell out much for it. But please do not hesitate to give me an estimate if you're able to provide a working solution.

Nobody?
I only need to send/receive strings, no HTTP server features needed.

Compile the library yourself and pull the types and function prototypes in, then load the library via LoadLibrary() and retrieve the function symbols via GetProcAddress().
This should get you started in the right direction, unfortunately that's all I can offer. If you have a specific question during the implementation of the above, don't hesitate to ask though.