Flkjaasdfasf ;da;a fasdfasfdslladfafdsaf aasdf ;-)
I know it can be difficult to write English and sometimes my sentences look like this but please when you want an anwser we should know what you want.
Durable or non-durable subscriptions does not allow you to receive messages that were send before the subsciber subsribed to the topic.
The only difference between durable and non-durable subscriptions is that when the subscriber is temporary not available to receive message after he/she subscribed it will receive all the messages sent in the meantime.
So a durable subscription means that you will receive all messages from subscription until unsubscription.
Have fun - Andy