Port 80 is being used by SYSTEM (PID 4), what is that?

http://stackoverflow.com/questions/1430141/port-80-is-being-used-by-system-pid-4-what-is-that

This works for me:

1. Right click on My Computer.
2. Select Manage.
3. Double click Services and Applications.
4. Then double click Services.
5. Right click on "World Wide Web Publishing Service".
6. Select Stop.

An other service that could occupied the port 80 is BranchCache

services.msc showing it as "BranchCache"

or use the net command to stop the service like

net stop PeerDistSvc

Update:

PeerDistSvc is a service behind svhost.exe, to view svhost services type

tasklist /svc /fi "imagename eq svchost.exe"

The issue is how to free it up use, simply use

net stop http

http://stackoverflow.com/a/16243333/777982