this is already built in. go to site settings and set the appropriate registration type ("verified" recommended)

there is a main portal. i click a link going to my portal and there are passed parameters like name, employee number etc. i would like to use it to populate a record in the users table of dnn, so as to work as a simple auto-registration of somesorts. how can this be possible? or is there an existing simple module/algorithm? thanks! Ive been looking everywhere!

John