For security reasons, I have to upgrade a Tomcat web server on Windows Server 2008 that I haven't configured myself. It is Tomcat 6.0 and I have installed Tomcat 7.0 side by side with the Tomcat 6.0 installation, then renamed the Tomcat 7.0 service to the same name ("Apache Tomcat") as the 6.0 service and copied the webapps subfolder to the 7.0 folder. But the web application doesn't work with Tomcat 7.0. What more should I do to make it work under 7.0? I can still make it work, when I start the 6.0 service.