Walkthrough: Converting a Web Site Project to a Web Application Project in Visual Studio 2005 
This walkthrough explains the process of converting an existing Visual Studio 2005 Web site project to a Visual Studio 2005 Web application project. The Web application project model uses the same conceptual approach as a Web project in Visual Studio .NET 2003. This includes a project file to include and exclude files and compilation to a single assembly. For more information about Web project conversion, see Web Project Conversion from Visual Studio .NET.

 http://msdn2.microsoft.com/en-us/library/aa983476(VS.80).aspx

 

Step-By-Step Guide to Converting Web Projects from Visual Studio .NET 2002/2003 to Visual Studio 2005
Walks you through the process of converting an existing Visual Studio .NET 2003 Web project to a Web application project in Visual Studio 2005 (7 printed pages)