ASP.NET pipeline

The ASP.NET pipeline model consists of an HttpApplication object, various HTTP module objects, and an HTTP handler object, along with their associated factory objects. An HttpRuntime object is used at the start of the processing sequence. Throughout the request life cycle, an HttpContext object is used to convey details about the request and response.

For more information about the ASP.NET request life cycle, see "ASP.NET Life Cycle" at http://msdn.microsoft.com/en-us/library/ms227435(VS.80).aspx.