[THIN] Password resets

I am looking for an application that will let Customers Reset their own
passwords if they happen to forget it. The kind where they can click on a
link, answer a security question, or use their registered Email address,
something like that to request a new password.
Currently they have to contact support for this and we want to automate this
process. Anyone have a link or know where i can find one? I have started
googling, but havent found it yet.

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