hello there, While i am trying to connect oracle thru JNDI, i was getting javax.naming.NamingException- unable to create resourse instance. I thought the server may not be able to read the zip file. Hence, I have unzipped classes12.zip and copied OracleDriver.class into my application directory under WEB-INF/lib after converting it as a jar file. But while starting up the server(tomcat4.1), i am getting some ZipException(unable to opent the zip file). could anybody help me out to solve this problem?. thanks in advance.