Hello I am using J2EE App Server 1.4 and every thing is in classpath like j2ee.ar appserv-rt.jar and client jar file generated by server dutring deployment (SalryClient.jar) But during the execution of the client class giving the exception : javax.naming.NoInitialContextException:Need to specify classname in environment or system property or as an applet parameter,or in application resource file :java.naming.factory.initial