The blue window is for ANPR payment
No user profile:
If you choose not to register a profile, you can use the solution by entering your number plate, and follow the instructions on the screen. You will have the opportunity to get your receipt on e-mail.
With regestering a user profile:
If you choose to register a profile you can in addition choose to store and cross different vehicles and payment cards, and set automatic payment on them. You can also register for Fordelsparkering.
To read more click here.
For direct access (instead of using the blue window) click here.