lets may application uses only one SQL account internally.and created a database for my application users.so the counting of license is by concurrent? or the no no of users in SQL databse we Created?. lets say i have 4 user created in our SQL server.But when the application run it uses on 1 user for 10 concurrent connection.DO i have to register the 10 concurrent even they are using the same user name in SQL server? tnx bob