I'm running JBoss with embedded Tomcat on NT 4.0. I'm having a problem running the sample jsp's provided with Tomcat. When I try to select one, the response that comes back indicates an exception( java.lang.NoClassDefFoundError: sun/tools/javac/Main ) was thrown. My first thought was that the classpath was not correct. I determined that I needed to have tools.jar in the class path. In order to make sure that happened, I created a batch file with these commands: set classpath=%classpath%;f:\jdk1.3\lib\tools.jar; cd \jboss-tomcat-2.1-beta\jboss-2.1\bin java -jar run.jar Yet when I attempt to access a jsp, here's what I get in the jasper.log: 2001-03-23 01:41:01 - JspEngine --> /jsp/num/numguess.jsp 2001-03-23 01:41:01 - ServletPath: /jsp/num/numguess.jsp 2001-03-23 01:41:01 - PathInfo: null 2001-03-23 01:41:01 - RealPath: F: \jboss-tomcat-2.1-beta\jakarta-tomcat-3.2.1\webapps\examples\jsp\num\numguess.jsp 2001-03-23 01:41:01 - RequestURI: /examples/jsp/num/numguess.jsp 2001-03-23 01:41:01 - QueryString: null 2001-03-23 01:41:01 - Request Params: 2001-03-23 01:41:01 - Classpath according to the Servlet Engine is: F: \jboss-tomcat-2.1-beta\jakarta-tomcat-3.2.1\webapps\examples\WEB-INF\classes When I try to get to the class from the command prompt after ending JBoss, with: java sun.tools.javac.Main It works, I get the java compiler started with no parms. It seems like Tomcat is getting the classpath from somewhere else, but I can't figure out where! Any and all help is appreciated Marc Robertson DST Systems, Inc.