Since Visual Studio 2010 SP1 it's possible to start a project in IIS Express (http://learn.iis.net/page.aspx/868/iis-express-overview/) instead of the old workstation IIS or Visual Studio Development Server AKA Cassini. IISExpress supports IIS 7 configuration and also HTTPS.
It would be nice if license files worked in the same way in IIS Express as when using Cassini.
This looks like it has been fixed now!
I think it was in "#120114 Checking licenses" in Update 56 / 8.10.