I downloaded jakarta-tomcat 3.2. I have no problems running a servlet. However, when the jsp-engine tries to compile a jsp (sample.jsp) located in the examples context, I get a NoClassDefFoundError. I can't run any jsp, even the jakarta-tomcat supplied jsps. sun.tools.javac.Main resides in my jdk\lib\tools.jar and from the jakarta-tomcat engine log, you can see that this jar file is included in the classpath. <<...OLE_Obj...>> Also, I am using jdk1.3.0_01. Here is the actual error message that I receive. Error: 500 Location: /examples/jsp/AppDevStudio/sample.jsp Internal Servlet Error: javax.servlet.ServletException: sun/tools/javac/Main at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:390) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:387) at org.apache.tomcat.core.Handler.service(Handler.java:263) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:371) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:786) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:732) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:210) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:407) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) Root cause: java.lang.NoClassDefFoundError: sun/tools/javac/Main at org.apache.jasper.compiler.SunJavaCompiler.compile(SunJavaCompiler.java:128) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:245) at org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:453) at org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146) at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:424) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:152) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:164) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:309) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:382) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:387) at org.apache.tomcat.core.Handler.service(Handler.java:263) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:371) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:786) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:732) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:210) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:407) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Thread.java:484) Any clues to what's going on would be greatly appreciated. Tony Dean SAS Institute Inc. The Power to Know Sr. Systems Developer Distributed Technologies (919)677-8000 x6704 [EMAIL PROTECTED]