That's the proper URL, minus the domain name, as you can see how it looks here.

Try going into your control panel, and in the bottom menu, click on the PHP info link and look for the PATH_INFO variable in the resulting page. If that's blank then it's still not populating it after the change. I'm not sure on the exact settings for IIS, but I know we have a few people here with more windows knowledge that might be able to help out.