Return of Reckoning

Hello, I have a problem when I cant even launch the game. Everytime I hit connect with ROR client, it does an error:

Error starting: System.UnauthorizedAccessException: L'accès au chemin d'accès 'E:\Return of Recoking\Warhammer Online - Age of Reckoning\WAR.exe' est refusé.
à System.IO.__Error ...