Well done is better than well said.
In various passages throughout this book, I've mentioned HTTP modules and HTTP handlers and introduced them as fundamental pieces of the ASP.NET architecture. HTTP handlers and modules are truly the building blocks of the .NET Web platform. While a request for a page or a Web service is being processed, it passes through a pipeline of HTTP modules, such as the authentication module and the session module, and is then processed by a single HTTP handler. After the handler has processed the request, the request flows back through the pipeline of HTTP modules and is finally transformed into HTML code for the browser.
An HTTP handler is the component that ...