Today we’d like to share an excerpt from one of our upcoming books: Programming Microsoft® ASP.NET 4 by Dino Esposito. We’ll publish this book in February 2010. You can learn more about the book here: In this excerpt from Chapter 5, Anatomy of an ASP.Net Page, the author describes how an HTTP request for an . aspx resource is mapped to a page object. Anatomy of an ASP.NET Page ASP.NET pages are dynamically compiled on demand when first required in the context of a Web application. Dynamic compilation is not specific to ASP.NET pages alone (.aspx files); it also occurs with services (.svc and asmx files), Web user controls (.ascx files), HTTP handlers (.ashx files), and a few more ASP.NET application files such as the global.asax file. A pipeline of more