virtualbox.org

Running a Windows 2003 Guest on Windows XP. On the guest, when I try to pull up the properly configured Default Web Site, I get a page "Service Unavailable". The Default Application Pool is running with the correct user, who is a member of the correct groups. IIS is listening on the correct port. The firewall is not running. This only happens on a VBox guest. If I install the same way directly on a computer, it works.

Does VBox require some additional settings?

VB doesn't require any additional configuration for it. Please check the settings again, are you sure that a valid site is on the given location?