Return of Reckoning

Right, so the torrent download and the launcher download went fine. I put the launcher file into my game folder, and upon trying to log in, came upon this;

Error starting: System.UnauthorizedAccessException: Access to the path 'C:\Program Files\Warhammer Online - Age of Reckoning\WAR.exe' is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode)
at RoRLauncher.Client.patchExe()
at RoRLauncher.Client.Handle(PacketIn packet)


I am running Windows 8, I believe. But from the text there appears to be some kind of issue with the access. Any idea what is exactly causing this?

MAke sure files arent marked as read-only.