On 15 Jun 2007, roxana.belecheanu@googlemail.com wrote in
comp.infosystems.www.servers.ms-windows:

> I've installed Apache 2.0 on Windows XP, and it says it was
> successfully installed, but when testing httpd.conf it gives the
> following error:
>
> "Only one usage of each socket address <protocol/network
> address/port> is normally permitted. : make_sock: could not bind
> to address 127.0.0.1:80 no listening sockets available, shutting
> down."

You probably have another application using port 80, possibly IIS. Make
sure that's not running, and/or use another port besides 80.

Do a google groups search on this common problem for many complete
descriptions and solutions.