Hello, the problem is with OAS (Oracle Application Server), 10.2.0.1.2 version and Oracle 9i. I've reinstalled that OAS (I have 3 OAS's more with the same configuration, it isn't a cluster, it has a instance each one). When I enter into the EM console, in the sessions, it shows the session of OAS, but it doesn't show the program (it should show jdbc thin client). Someone knows what happen? The datasources in OAS are correctly configured ... If I look in the session browser of TOAD, the same, it doesn't show the program. If I run a select for v$session, the same ... is the unique node that doesn't show the program of connection. I'm sorry for my bad english, I hope that someone can understand me ;-) Thanks beforehand. Cheers...