Good evening. I have purchased Signalsoft Bonn Hbf. In the order page I can read the code activation, but the sim starts as it was already activated. Is it normal?

Typically you would get a window prompting you to register your simulation. But the option is there to reply with an answer that you've already registered.

That's mainly there for the situation that you've already registered your copy (i.e you're re-installing the simulation).

 

Anyway, the sim will run but can be limited as long as you haven't inserted the license key to the simulation. The last you should have received by e-mail after your purchase.

For Bonn there is no register simulation window and you don't have to register if you don't want to update it. But you can close the Start Window by hitting "Cancel" and then you can open the registration window manullay in the "Information" menue. I don't know if there is a button for registering or just for entering the license key. In case there is no button, you can use this link: https://railsignalling.org/signalwiki/index.php?title=FAQ_EN#How_do_I_get_and_install_my_licence_key.3F

10 minuten geleden, Gleissperre zei:

I don't know if there is a button for registering or just for entering the license key.

It's actually a menu option under Help as long as a license key hasn't be inserted to the sim.
Actually, it's shown on the Wiki page you're referring to