Description: In this part, we will take a look at one of the new features in IIS 6.0, named Application Pool, and demonstrate the use of application pools in isolating ASP.NET Web applications, thereby increasing the reliability of your ASP.NET Web applications. Then, we also will explore how these application pools affect ASP.NET applications in terms of the identity that is used to run your ASP.NET applications. Along the way, we will also look at the steps to be followed for creating application pools and assigning ASP.NET applications to run under a specific application pool. Finally, we will illustrate how to configure an application pool to run using the credentials of a specific user account.