Why is the System process listening on Port 443?

Posted by ClearsTheScreen on Super User See other posts from Super User or by ClearsTheScreen
Published on 2010-03-29T18:35:17Z Indexed on 2010/03/29 18:43 UTC
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Windows

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system

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port

I am having problems starting my apache server, because port 443 is already in use.

It turns out, the system process (PID 4) uses the port 443. I don't have IIS installed, the services.msc shows (predicatbly) no Exchange server running, nor WWW-Services, nor IIS. I have no idea how to find out what service uses that port short of just disabling each service one after the other, and I am not even sure that would help.

I would be grateful if someone could point me towards how I can get my SSL port back, thank you :)

P.S.: Of course "just switch apache to another port for SSL" would solve the problem of not being able to start apache. But I'd still like to know what is so insistent about hogging port 443. :)

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