Internet Information Services (IIS) 7.0 Resource Kit

Managing Application Pools

Application pools facilitate hosting a group of Web applications inside a separate set of IIS worker processes that share the same configuration. Application pools enable you to isolate applications for better security, reliability, and availability. The worker process serves as the process boundary that separates each application pool so that when one worker process or application is having an issue, other applications or worker processes are not affected. For example, imagine you plan to install an old ASP application that uses legacy component objects. To protect other applications in the Web site, you can create a new application pool and host the legacy application inside the new application pool. In this example, ...