WSUS Update on C#

How can I get now downloading patches? The problem is: I sta开发者_如何学Pythonrt download and close my application, and when I start it I need to know what is going on there.

I aready found approach. I save the list of update ids in registry, and on start application reed from registry, start download for its like that

IUpdateSearcher updateSearcher = updateSession.CreateUpdateSearcher();
ISearchResult searchResult = updateSearcher.Search("IsInstalled = 0");


var updateCollection = new UpdateCollection();

       for (int i = 0; i < searchResult.Updates.Count; i++)
        {
            IUpdate update = searchResult.Updates[i];
            //update id from registry
            if (update.Identity.UpdateID == "081cab8e-faf5-421b-be7c-3e796837f1ff")
            {
                updateCollection.Add(update);

                break;
            }
        }

        downloader = updateSession.CreateUpdateDownloader();
        downloader.Updates = updateCollection;

        var downloadJob = downloader.BeginDownload(new DownloadProgress(), new DownloadCompleted(), this);

        var progress = downloadJob.GetProgress();

and in var progress I cat get what updates now downloading and its progress