Bugs and Debugging is quite common in web applications. In this tutorial the author shows an exception to the rule. These types of errors and run time errors could be handled in ASP.NET. This article could help the webmasters developer-specific error message. The author tells about how structured exceptions could be handled through try, catch, finally blocks, and forces the users to deal with exceptions when they occur. The structured error handling code CLR denotes the users when the error occurs. This article helps the users to find and erase the errors in ASP.NET very easily.