I noticed by accident today that I have some unknown webserver listening on port 8000. Opening http://localhost:8000 just returns 404, so I don’t get any hint what exactly is listening there.

I’ve used netstat -ano to find out, that the process with PID 4 is listening on that port. PID 4 is the System process. Why is my system listening on that port, without me actually starting a server? Or how can I find out what exactly is listening there?

I’ve read the related questions about port 80 and port 443, but none of the services mentioned there were running on my system. And the other suggestions there didn’t work either.

edit:

The HTTP response of the server lists Microsoft-HTTPAPI/2.0 as the server.

edit2:

As requested by Shadok, here are the entries of TCPView with 8000 as the port. But I doubt it’s useful at all…