Sometimes you need to run another service on port 80 or 443, but IIS binds to every IP by default. Here’s the trick to add/remove IP’s from IIS 7.5. It cannot be done by any web GUI.
netsh http add iplisten ipaddress=184.108.40.206
netsh http del iplisten ipaddress=220.127.116.11
netsh http show iplisten