Help with Cycling Manager 4

[Bozza]

Hello game-fanatics,

I've recently bought Cycling Manager 4 and now I wanted to play it via LAN on my 2 pcs with a friend of mine. The only problem is that if I make a copy of the game I cant play with it (I know, StarForce 3.0 protection). But it also sais that I can enter a product key of the game. Only problem is that I can't find a product key anywhere. I find this kind of strange coz if someone wants to play the game via LAN he/she has to buy it twice!?!? Like someone is gonna spend €90 in total for 1 game

Can someone perhaps tell me where I can find this key the copy protection is asking?

Thanks in advance,

Bozza