Hi, I think i have setup the Oracle Client properly. I am not getting the Driver exception any more. I am trying to run the examples. I have made changes to all the necessary changes. Even the table "myproduct" got correctly initialised in the database when i started the server. But when i am trying to run the application i am getting the following error. Can someone please help me with this one. E:\ORION\demo\EJB\CART>java -classpath %Classpath%;../../../orion.jar;../../../e jb.jar;../../jndi.jar;e:/orion/demo/ejb/product ProductClient Communication error: Lookup error: java.lang.SecurityException: Invalid username/password ****************** Just for reference, here is my "data-sources.xml" reference. <data-source name="Oracle Datasource" class="com.evermind.sql.ConnectionDataSource" location="jdbc/OracleDS" pooled-location="jdbc/DefaultPooledDS" xa-location="jdbc/xa/DefaultXADS" ejb-location="jdbc/DefaultEJBDS" url="jdbc:oracle:thin:@agni:1521:sid" connection-driver="oracle.jdbc.driver.OracleDriver" username="scott" password="tiger" schema="database-schemas/oracle.xml" /> ******************* Also i made changes server.xml and added these lines. <application name="ejbsamples" path="../demo/ejb" /> Do i need to make any more changes or is there any other place i need to specify User Name and Password. Thanks sudhir _____________________________________________________________ Get [EMAIL PROTECTED] email Today! Visit http://webmail.bharathexpress.com