Things you still cant do with ASP.NET modules on IIS

IIS7 was revolutionary in opening the IIS web server platform for public extensibility. Prior to that, few software vendors wrote extensions for IIS, using the native ISAPI Filter and Extension APIs. IIS7 completely changed this, creating a public extensibility model on top of which the web server itself was implemented, and opening it for managed development via the familiar ASP.NET API.

crawled from : Mvolo