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static public string GET(string url)
    {
        string html;

        try
        {
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
            request.CookieContainer = cookiecontainer;
            request.UserAgent = useragent;
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            StreamReader sr = new StreamReader(response.GetResponseStream());
            html = sr.ReadToEnd().Replace("&", "&");
            Console.WriteLine(url);
            return html;
        }
        catch (Exception ex)
        {
            if (ex.Message == "The operation has timed out" || ex.Message == "Der Remoteserver hat einen Fehler zurückgegeben: (403) Unzulässig.")
                return GET(url);
            else
                return "";
        }
    }					

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        catch (WebException ex)
        {
            if (ex.Status == WebExceptionStatus.Timeout)
                return html = GET(url);            
        }
        catch (IOException) { }
        return "";