private BackgroundWorker[] Workers;
        private int MaxWorkers = 10;
        private Queue<string> Clients = new Queue<string>();

        private void _StartNewClient(BackgroundWorker bw)
        {
            if (Clients.Count > 0)
            {
                string md5nummer = Clients.Dequeue();
                Debug.WriteLine("Starting " + md5nummer);
                bw.RunWorkerAsync(md5nummer);
            }
            if (Clients.Count == 0)
            {


            }

        }

        //BackgroundWorker ~> Task
        private void bw_DoWork(object sender, DoWorkEventArgs e)
        {
            Debug.WriteLine("Working " + e.Argument.ToString());
            ~DO SMTH
            Debug.WriteLine("Worker # " + e.Argument.ToString());
            e.Result = e.Argument.ToString();
        }

        //Background-Worker-Finished
        private void bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            solved++;
            if (Clients.Count > 0)
            {
                Debug.WriteLine("Completed " + e.Result);
                _StartNewClient((BackgroundWorker)sender);
            }
            if (Clients.Count == 0)
            {
                bool isAnyBusy = true;
                for (int i = 0; i < MaxWorkers; i++)
                {
                    if (Workers[i].IsBusy != true)
                    {
                        isAnyBusy = false;
                    }
                    else { isAnyBusy = true; }
                }

                if (!isAnyBusy && !finishesMsgShown)
                {
                    finishesMsgShown = true;
                }
            }



        }
        //Start Event
        private void button2_Click(object sender, EventArgs e)
        {

            MaxWorkers = int.Parse(numericUpDown1.Value.ToString());

            for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
            {
                Clients.Enqueue(i.ToString());
                Debug.WriteLine("Added: " + i.ToString());
            }

            Workers = new BackgroundWorker[MaxWorkers];
            for (int i = 0; i < MaxWorkers; i++)
            {
                Workers[i] = new BackgroundWorker();
                Workers[i].WorkerSupportsCancellation = true;
                Workers[i].DoWork += new DoWorkEventHandler(bw_DoWork);
                Workers[i].RunWorkerCompleted += new
                RunWorkerCompletedEventHandler(bw_RunWorkerCompleted);
                _StartNewClient(Workers[i]);
            }

            Debug.WriteLine("Finished Click handler");
        }
]]></Code>
    </Snippet>
  </CodeSnippet>
</CodeSnippets>