Hi, folks; just want to bring to attention to my question again. I installed JDK1.3 and JSDK2.0 kit in my Windows NT 4.0 system. I was able to set up the path in NT environment, but How can I set up the classpath. I try to compile my first servlet under the directory c:\>javac MyFirstServlet.java The system gave the error msg: unable to resolve the symbol: java.servlet.httpServlet: unable to resolve the symbol: java.servlet.httpServletRequest, etc. something to that effect. Can anybody shed lights on this? Any help will encourage me to go on further in this new area.