i've insert in default properties this line jdbc.drivers=sun.jdbc.odbc.jdbcOdbcDriver jdbc.datasources=jdbc/msaccess|jdbc:odbc:shopper where shopper is the link to my database after in my code i've add this line: InitialContext ic = new InitialContext(); DataSource ds = (DataSource) ic.lookup("java:comp/env/jdbc/shopper"); con = ds.getConnection(); but the lookup don't work... i've read that i must set a classpath for jdbc driver, it's true? how set it? Help me i've making a italian degree and i'm blocked thanks    More>>