Asked 8 years, 8 months ago. Active 2 years, 1 month ago. Viewed k times. Seems PID 4 is "System". Run telnet If you're running Windows 7, you need to install telnet client from "add and remove Windows features" first. Port 80 is already in use. Changing the port number may not desired in a Production environment.
This is because anyone using your site must include the port number in the URL. As several programs cannot share the same port, you need to find what is already using port 80, then decide what to do. Here we show you how to find out what might be using port 80 on your computer and what to do if you have to change the port from 80 to something else in your Apache server software.
Not every piece of software tells you though so more work might be needed. If there is an entry look underneath on the next line and it will hopefully tell you the executable that is on the port. In this case the process is Skype. Locate the active connection that is using local address 0. Duplicate or not. This is first hit on Google. Active Oldest Votes. I wrote in cmd: net stop http Asked me "The following services will be stopped, do you want to continue? MuhFred MuhFred 1, 1 1 gold badge 15 15 silver badges 21 21 bronze badges.
On Windows 7, I couldn't stop the processes due to "access denied", but it showed me names of the processes that would be killed if I had the rights I didn't have rights for netstat -a -b.
Dec 4 '14 at Ben Francisco Francisco 5 5 silver badges 2 2 bronze badges. Apologies for not writing a typical web development post but this is exactly the problem I encountered and it seems many others have too. I run Apache and IIS on Windows and prefer a server switching method so only one application listens on port 80 at any time. Danmark - Dansk. Deutschland - Deutsch. Eesti - Eesti. Hrvatska - Hrvatski. Change both these lines, so as to have a different number instead of I have chosen instead of Make sure that this is a free port, not used by any applications.