I can compile a simple HelloWorld.jsp using v.92 however when I make the switch to v1.00. I have made the change in the rules.properties from *.jsp = jsp to *.jsp = com.livesoftware.jsp.JSPServlet and I still get an error. I get an HTTP 500 Internal Server Error Actual error is java.lang.NullPointerException: at com.jclark.xsl.sax.XMLProcessorImpl.load(XMLProcessorImpl.java) at com.jclark.xsl.sax.XSLProcessorImpl.parse(XSLProcessorImpl.java) at com.livesoftware.xml.XT.process(XT.java:66) at com.livesoftware.jsp.JSPCompiler.createServlet(JSPCompiler.java:111) at com.livesoftware.jsp.JSPServlet.service(JSPServlet.java:95) at javax.servlet.http.HttpServlet.service(HttpServlet.java, Compiled Code) at com.livesoftware.jrun.JRun.runServlet(JRun.java, Compiled Code) at com.livesoftware.jrun.JRunGeneric.handleConnection(JRunGeneric.java, Compiled Code) at com.livesoftware.jrun.service.proxy.JRunProxyServiceHandler.handleRequest(JR unProxyServiceHandler.java, Compiled Code) at com.livesoftware.jrun.service.ThreadConfigHandler.run(ThreadConfigHandler.ja va, Compiled Code)