The users can change their role selection(s) when editing their account settings.
Installation
Unpack in your modules folder (usually /sites/all/modules/) and enable under Administer > Site Building > Modules.
Key features "User-Selectable Roles":
· select which custom (i.e. non-default) roles to include on registration and user account form pages
· definable singular/plural role labels for public display
· allow single or multiple role selections
· choose whether user role selection is required or optional
Requirements:
· Drupal 5.x
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