public WUUpdateWrapper(IUpdate2 update, bool isDownloaded, bool isInstalled)
 {
     Update       = update;
     IsDownloaded = isDownloaded;
     IsInstalled  = isInstalled;
 }
 public void Add(IUpdate2 update)
 {
     Collection.Add(update.Identity.UpdateID, new WUUpdateWrapper(update, update.IsDownloaded, update.IsInstalled));
 }