9 string references to 'user_register' in Drupal 6

openid_authentication in modules/openid/openid.module

Authenticate a user or attempt registration.

openid_form_alter in modules/openid/openid.module

Implementation of hook_form_alter : adds OpenID login to the login forms.

theme_comment_post_forbidden in modules/comment/comment.module

Theme a "you can't post comments" notice.

user_admin in modules/user/user.admin.inc

Page callback: Generates the appropriate user administration form.

user_admin_settings in modules/user/user.admin.inc

Form builder; Configure user settings for this site.

user_login_block in modules/user/user.module

user_menu in modules/user/user.module

Implementation of hook_menu().

user_register_access in modules/user/user.module

user_register_submit in modules/user/user.module

Submit handler for the user registration form.