Depending on which version of Tomcat you use, you may have to perform a few additional steps. Because Struts 1.1 requires a container to support the 2.2 Servlet specification and the 1.1 JavaServer Pages specification, the minimum version of Tomcat that will work is Tomcat 3.2. However, if possible, you should attempt to use the latest version of Tomcat (4.X), as it has many improvements that allow the Struts applications to perform better.