Install Tomcat 4 as service on Windows NT/2000/XP ensure CATALINA_HOME and JAVA_HOME are appropriatly set as 'System variables' in the 'Environment Variables' section of the System control pannel. run this command line to install tomcat as a service (all on one line): "%CATALINA_HOME%\bin\tomcat.exe" -install "Apache Tomcat" "%JAVA_HOME%\jre\bin\classic\jvm.dll" -Djava.class.path="%CATALINA_HOME%\bin\bootstrap.jar;%JAVA_HOME%\lib\tools.jar" -Dcatalina.home="%CATALINA_HOME%" -Xrs -start org.apache.catalina.startup.Bootstrap -params start -stop org.apache.catalina.startup.Bootstrap -params stop -out "%CATALINA_HOME%\logs\stderr.log" it will be an automatic startup service but it will not automatically start until the next system reboot. start the service with this command line: net start "Apache Tomcat" you may stop the service with this command line: net stop "Apache Tomcat" and you can uninstall the Tomcat service with this command line: "%CATALINA_HOME%\bin\tomcat.exe" -uninstall "Apache Tomcat"