OK, I downloaded and built the profiler locally, moved the jar and sar files to the proper positions, but I still get the same failure. I rechecked the jboss-profiler.jar file with "jar tf ..." and it looks fine to me. What next? Do I need to do somehting with the classpath? I tried adding the jboss-profiler.jar (and others) to the classpath bu that doesn't help. I removed the jboss-profiler.jar file form the bin directory and I get the same error, so there must be something wrong with the classpath or some other definition that locates the jar file. Ideas? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4169107#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...