This task applies only to computers running Internet Information Services (IIS) 7 or above with Windows Server 2003 or 2008.

You should recycle processes periodically, for both stability and performance reasons. Over long periods of time, leaked resources and system or application problems might affect Web server throughput. You should balance this with recycling too often, however, since the cost of stopping the worker process, reloading pages and re-obtaining resources and data might override the benefits of a recycle. If there is high load on the interviewing server, you might need to configure your application pool to recycle once a day. If there is low load, you can set the application pool to recycle once a week, or disable it completely. By default application pool recycling is disabled for the application pool.