I just installed XAMPP on my Windows 7 machine, however when I try to start Apache it says "apache is not started..." and I get the following error in the apache log:
(OS 10048)Only one usage of each socket address (protocol/network address/port) is normally permitted. : make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
What does this mean and how can I resolve the issue? My Windows Firewall is disabled.