This is why, the installer has detected that you are running a outdated version of .net framework. You must download the .net framework from Here (http://www.microsoft.com/en-us/download/details.aspx?id=17718) in order for the game to properly work. You may also need to download This (http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=29)