windows 8 NT Kernel and System using port 80

I ran into this problem after installing just Apache 2.2.22 on Windows 8. What I'm strongly convinced of after scouring many forums for information is that the most common cause of this issue on Windows, which produces the "make_sock could not bind to address 0.0.0.0:80" error, is that IIS is running. Stopping the World Wide Web Publishing Service is what finally enabled Apache to start for me as well.

I ran into the same problem with NT Kernel listening on port 80 when I wanted to get my own application listening on that port.

After stopping

• IIS
• World Wide Web Publishing service
• IIS Admin Service
• SQL Server Reporting services

the NT Kernel was still listening on port 80

It was finally when I stopped the "Web Deployment Agent Service" that it stopped listening on 80.

Note: use netstat -bano in an elevated command prompt to see what apps are listening on which ports.

a whole bunch of services might have grabbed port 80:

http://lordamit.blogspot.de/2012/06/windows-7-windows-8-apache-errorport-80.html

it's hard to say which one caused your system to do it, i had to disable the "World Wide Web Publishing Service".