Paul
what about Additional, Secondary usergroups?

Not sure what that has to do with this hack ?

This has no effect on secondary groups - this is about what primary group you are assigned to when you confirm your registration.

ok Paul, Thanks

i fount that
another question

what's difference between registration_activate_process and registration_addember_process hook locations?

Well the names pretty much say it all. The addmember_process is called when a new member is added (i.e. when you first register), while activate_process is when a member validates themselves via e-mail verification.

how hard would it be to transform this so instead of email it looks at age?

It would be a totally new mod.

ohh ok nevermind sorry

Installed.

I am using this on 4.1.12 and it works which is awesome. The one problem I am having is with case-sensitive issues. When they register, I put them in a different usergroup which works great except when they case-sensitivity of their email address does not match up. For example, if I am "AshenTemper@gmail.com" under the list but I sign up using "ashentemper@gmail.com" (or vice versa), it sees them as two different email addresses and does not put me in the proper group.

Any way of addressing this issue? And yes, I do realize this mod is no longer being supported... just hoping someone who reads this and is familiar with the mod might have some good info/feedback.