Ok, under Windows you can either work with Apache (delivered by Zend) or with IIS. If you went the Apache route then it should be Apache which is listening on ports 80 and 10081. It sounds like the virtual host relating to the 10081 vhost is broken somehow and is not starting. Can you track down the Apache error log (sorry, I don't know where off the top of my head since I am a Linux guy, but it should be under the top level Zend insatallation path) and see if there are any relevant messages in there. If you cannot find this file, let me know and I will install up a box here and see if I can find it for you.