You have a server named Server1 that runs Windows Server 2003 Web Edition Service Pack 2 (SP2).
You create a new virtual directory named App1. App1 contains a Web application.
Users report that when they enter http://app1 in their Web browsers, they are unable to connect to the Web application.
You need to ensure that users can access the Web application when they connect to http://app1.
What should you do?