Nope, I don't think any D-link offers it. What you can do though is hook up a old router, leave it unsecured, and run it in bridge to the 4500. Just leave it unplugged until your friends come over then plug it back in. If your worried about security concerns, you can enable WLAN partition in the Advanced wireless option, that will block your wireless laptops from connecting to each other, so no one can go snooping around in your shared folders. Just be warned, that will block all filesharing between your wireless in the mean time.