How do I get the dynamic port at run time used by visual studio? e.g, http://localhost:1807
<p>I am using Google Checkout and I could like to create an absolute URL for returning to our web site to edit he cart and I would like the code to work in debug mode as well as production mode.</p>

<p>Req.EditCartUrl = "http://localhost:1807/WebSite/calculator.aspx"</p>
