Return of Reckoning

Well, i added writing rights, is that enough?

Writing, Reading, Executing rights are up. Modifying those was a success. Doesnt the error come from elsewhere?

Error starting: System.UnauthorizedAccessException: L'accès au chemin d'accès 'C:\Program Files (x86)\Warhammer Online - Age of Reckoning\WAR.exe' est refusé.
à System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
à System.IO.FileStream.Init(String path, FileMode mode, FileAccess ...

This does not work for me. I just downloaded the game, launched it and had the same error on login. Please help me fix this