I have a couple different servers running on my Win7 Pro box - IIS at port 80 and a music streaming server (subsonic) running on 8080. Both respond to 'http://localhost' but neither respond to 'http://[myIPAddy]:port'
I've turned the firewall off and get the same result. Windows Firewall w/AS and MS Security Essentials. I've also tried it with my router's 'block anon requests' to off. What else could be getting in the way?