Install was 100% from cd on win 7.
But the game didn't start, nothing happened.
The solution is to change compatibility mode. I changed to "XP SP 2". You find this option by right-click on "Game.exe"/properties and then click compatibility.
The game now runs perfect.
And there's an update to 1.3 in cd as well.
I've seen other guides much more complicated.
- But don't think that's necessary.
(For steam-version I guess you don't have to do anything).