We can add any number of files and folders within the application without recompiling each and every time a new file is added to the overall solution. ASP.NET2.0 has the capability to automatically precompile ASP.NET application dynamically. In case of ASP.NET 1.0 or ASP.NET 1.1 everything is complied in our solution into a DLL. Now this is not required in ASP.NET 2.0 because of its defined folder structure. This article will define each of these folders and how they work. The sample code snippets have been written in C#. Let us now examine the usage of each folder in detail.