I got it working now!
Thanks to everyone and specially Yorkastroid!
I redownloaded Net7-install, reinstalled as admin. (reboot in order to get the rights). Uninstalled it, rebooted the PC again and installed it with admins rights again. Reboot again.
All the exe. files were with admin rights (supposedly, they were with admin rights before too). Now it did update again (Before the "reset updates" didn't make the net7proxy to update).
Finally I was in the game. But...
Resolution was on lowest and smallest screen. the Changes I made in the net7config didn't relate to the game and the "Test Performance" button didn't activate anything. The VIDTEST, net7config and E&BConfig had admin rights. I didn't poke in the compatibilties as Windows gave different setting to all.
When I tried E&BConfig nothing happend.
I changed it to have service pack3 instead of 2 and it started to work.(all others .exe have different settings like vista and service pack2, who or what chose that I don't know). Pressed the button there to TEST Performance and it worked and it related to the games resolution.
Yet, I haven't had time to try to actually play ingame , only made it to see the ship gate and the toon to run for the door.
Thanks!