The High Volume Registration System allows for the creation and hosting of highly flexible, multi-lingual registration pages that are capable of handling high traffic registrations for very large campaigns with heavy subscription or opt-out demands.
Registrations can be single or multi-page and are even capable of executing decision logic to determine which pages a subscriber visits.
Since no subscriber authentication is performed, a user can register any email address - even one that is already registered. Thus, one can modify the demographics that are listed on the registration form (e.g. First Name) for another user.