Return of Reckoning

When i push connect button this message appear:
Error starting: System.UnauthorizedAccessException: Accesso al percorso 'D:\videogames\Warhammer Online - Age of Reckoning\WAR.exe' negato.
in System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
in 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)
in System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
in System.IO.FileStream..ctor(String path, FileMode mode)
in RoRLauncher.Client.patchExe()
in RoRLauncher.Client.Handle(PacketIn packet)

What should i do? help me pls, thx!!!

remove read only from war folder, run launcher as admin

Now work!!! Ty man, ty very mutch, you are the best one!!!

Now the game start, but appear this message:
Data.myp:
System.Exception: You need to stop application currently using the following file: data.myp
in MYPHandler.MYPHandler.WriteFileToArchive(FileInArchive archFile, MemoryStream MS)
in MYPHandler.MYPHandler.ReplaceFile(FileInArchive archFile, FileStream newFile)
in RoRLauncher.Client.UpdateWarData()

there isn't the character's lists, i can click only on cinematics, settings, credits and quit.

Ok, i removed read only from data.myp and now work, thx for all man