Silverlight websites

There are two types of Silverlight web sites that you can create in Visual
Studio:
Ordinary HTML web site: In this case, the entry point to your Silverlight application is a basic HTML file that includes a Silverlight content region.
ASP.NET web site: In this case, Visual Studio creates two projects-one to contain the Silverlight application files, and one to hold the server-side ASP.NET web site that will be deployed alongside your Silverlight files.
The entry point to your Silverlight application can be an ordinary HTML file or an ASP.NET web form that also includes server-generated content.