Processes requests for Microsoft SharePoint Foundation pages, controls, Web services, and other resources that are associated with a particular SharePoint Foundation application on the Internet Information Server (IIS).
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
The class is declared in the Global.asax file at the root of the virtual directory for the SharePoint Foundation application.
Normally, objects are not created with application code. The first time a SharePoint Foundation page is requested, a object is automatically created by Microsoft ASP.NET through its handling of global.asax to process the request.