Transfer windsurfing mmx Full version from PC too a new PC

[WindsurfPro]

HI Community

i enjoy the game very well !

So now i have a problem on my old pc i have the full version from windsurfing mmx and than when i transfer it with a usb-stick to the new pc
i have only the demo.

So what can i do to have again the full version?

thanks a lot

WindsurfPro