Webconfig File In Asp.net. They are all from microsoft the first three being from enterpriselibrary. Next recommended reading how to set default page using web.config in asp.net.

Paste the configuration element between the beginning and the end of the element that you identified in step 4. The key is to now view the properties for the file and set the copy to output directory property to copy if newer. Generally a website contains a single web.config file stored inside the application root directory.