ORA-25246: listen failed, the address string is an 8.0 style exception queue
Cause : An 8.0 style exception queue was specified in the agent-list for the LISTEN call.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Specify a normal 8.0 style queue or an 8.1 style queue in the agent-list.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.