I need a custom registration method which will take additional information on signup, assign them to a specific role and such. I have done this in my own app but i need to apply this to DNN. Where is the registration code for DNN, is it in a module or what? How difficult is this going to be?

Hi Oops,

disregarding how difficult it would be, I think you should check if the built in profile editing features suit your need, before. DNN offers some customization and the capability to add custom fields that may already allow your users to enter the desired info on register. Try browsing to Admin > User Accounts > Manage Profile Properties.

Best regards,
Dario Rossa

Could you provide a link to your site so that we can see the functionality?