I took out the link, No one should send you a way to avoid copy protection when they do not know if you have a legit copy. 
However with the problem you describe a new Setup file would do you no good.
What you need to do is let the computer know the game is uninstalled.
http://www.europa-universalis.com/forum/showthread.php?threadid=57457
Will give you instructions on clearing your registry.
However with the problem you describe a new Setup file would do you no good.
What you need to do is let the computer know the game is uninstalled.
http://www.europa-universalis.com/forum/showthread.php?threadid=57457
Will give you instructions on clearing your registry.