Connect to phpbb with moodle user detail access

Hello I ve seen this post that seams to be not far from what i want : [login to view URL] I need to connect some user from moodle 2.2 in phpbb , it can be more than one moodle plateform. With the same access they have on moodle in phpbb without to be forced to recreate an account on phpbb. I would like when a user create an account on moodle that his access will be automatically send to phpbb to grant him access. I don t want the reverse.... I want user fromn the internet to still be able to create their account on phpbb and post some messages. So some user will be connected to the forum with their moodle account , some with the account they create on phpbb Thanks for your help