When optimizing an application, it is important to be able to put stress on the server to identify bottlenecks and possible areas for improvement. You can use any tool to put stress on the server. The Microsoft Web Application Stress (WAS) tool lets you create or record a script that can be used to put stress on a server. This application is free of charge and is available for download. For more information about the WAS tool, see Appendix B, For More Information.