First, you can use the new C++ module API on which most of the built-in features are based. IIS 7.0 provides two options for developing Web server modules.

Because all of the IIS 7.0 features are built on public extensibility APIs, you can replace any of them with a custom implementation that best fits your needs. Or, in some cases, the application may require a customized set of functionality for which the built-in features are not flexible enough. Often, the desired Web workload requires additional functionality that may not be part of the built-in IIS feature set. This can often be done simply by installing only the features needed for your application, yielding a lean Web server that does exactly what is needed and nothing more. The IIS 7.0 modular architecture offers the ability to completely customize the Web server for a required workload. Then, I'll shape the deployment and management features for the module by developing a custom configuration section and creating a custom management page for IIS Manager. I'll first build the Web server module by taking advantage of the server's integrated ASP.NET extensibility. In this article, I'll dive into the IIS 7.0 extensibility model by walking through the shared source Response Modification project, which enables responses from IIS applications to be modified on the fly using configurable response modification rules. This design is found throughout the platform, from the modular Web server engine itself to the configuration system to the IIS Manager console. As a result, instead of providing a patchwork of plug-in points, IIS 7.0 makes the ultimate commitment to extensibility by implementing all of its own features on top of the public extensibility model. The IIS 7.0 architecture is designed to be extensible from top to bottom, allowing you to replace any part of the built-in feature set with a custom implementation that suits your needs. At the same time, however, what you see (in WindowsВ® Setup) is not necessarily what you always get. The IIS 7.0 Web platform supports more application framework technologies for hosting rich applications than any previous version of IIS, and it comes chock-full of features that you can use to deploy these applications right out of the box. This article uses the following technologies: Building a Response Modification module.Build Web Server Solutions with End-To-End Extensibility

Iis web server extensions