EDIT: after looking at RichardOD's answer , I am afraid that my answer is below and you cannot access it using IP.
But I suggest you go with its deployment in IIS.
The VS2008 internal web server (which I assume is cassini) creates a port for your application and runs a web server for your application on that port. If you want to access it from the outside, you will have to use this port in addition to IP.
Mahin Oct 12 '09 at 15:02 2009-10-12 15:02
source share