I installed it and it started up just fine for me. Please post the build.properties file you used to install time4u. At the start of the console log there will be three lines the describe the JVM and OS being used, please post those. Example: 08:50:38,907 INFO [ServerInfo] Java version: 1.5.0_16,Sun Microsystems Inc. 08:50:38,908 INFO [ServerInfo] Java VM: Java HotSpot(TM) 64-Bit Server VM 1.5.0 _16-b02,Sun Microsystems Inc. 08:50:38,909 INFO [ServerInfo] OS-System: Windows Vista 6.0,amd64 View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4209624#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...