ShipSim support can be found here http://www.shipsim.com/support/contact.
However, you have indeed shown your problem here on the forum so it's not necessary to go there anymore since I'm behind ShipSim support.
Thanks a lot for the photo and link. This is very strange.
It doens't look like an official SSE disk. Avanquest is known as sketchy software and many people see it as malware. It would be a very bad decision of Paradox to associate them with us. Also the texture of the printed label on your DVD looks more rough than the one we distribute- hinting that it might be printed on a blank DVD.
Attached is a photo of the commonly known SSE DVD. As you can see it looks a lot different.
I believe there is one other variation with the Paradox logo on it. Definitely no GSP or Avanquest.
I will inform the sales department about this and hopefully they can tell me more about this.