Hello, I have some exceptions on Jmx setting : 14/04/2004 19:00:17,437 INFO app Creating Naming:name=rmiregistry 14/04/2004 19:00:17,437 ERROR app MX4j RMI adapter not loaded: javax.management. ReflectionException: null nested exception is java.lang.ClassNotFoundException: mx4j.adaptor.rmi.jrmp.JRMPAdaptor 14/04/2004 19:00:17,453 INFO app className [com.sun.jdmk.comm.HtmlAdaptorServer ] does not exist 14/04/2004 19:00:17,453 WARN app No adaptors were loaded but mx.enabled was def ined. 14/04/2004 19:00:17,468 INFO app Registering the JMX hierarchy for Log4J 14/04/2004 19:00:17,562 INFO app Jk running ID=0 time=15/359 config=C:\apache\ jakarta-tomcat-4.1.29\conf\jk2.properties Althougth I copy jmx jars files (v2.0.1) in tomcat common and server libs ... Thanks for your help. Regards, Arnaud