private void ConnectToServer()
        {
            ClientInfoModel InfoModel = new ClientInfoModel();
            InfoModel.arc = GetArchitecture();
            InfoModel.macAddress = GetMacAddress();
            InfoModel.admin = GetAdminBool();

            sendRequest Request = new sendRequest(Properties.Settings.Default.ServerIP);
            if (Request.sendUpdateRequest(InfoModel, Properties.Settings.Default.SavePath))
            {
                foreach (string file in System.IO.Directory.GetFiles(Properties.Settings.Default.SavePath))
                {
                    UnpackZip(file);
                }
                InstallProgramms();
            }
        }
    public frmSoftwareverteilung()
    {
        InitializeComponent();
            TreeView1.Nodes[0].Expand();

            if (!Directory.Exists(Server_Client.Properties.Settings.Default.SavePath + "\\Softwareverteilung"))
            {
                Directory.CreateDirectory(Server_Client.Properties.Settings.Default.SavePath + "\\Softwareverteilung");
            }

            if (Server_Client.Properties.Settings.Default.ServerIP == "0")
            {
                MessageBox.Show("Bitte geben Sie die IP des Servers an.");

               frmSettings settings = new frmSettings();
                settings.ShowDialog();
                if (Server_Client.Properties.Settings.Default.ServerIP == "0")
                {
                    MessageBox.Show("Sie haben keine IP für den Servers angegeben. Das Programm wird beendet.");
                    this.Close();
                }
            }

            string HostName = Dns.GetHostName();
            IPAddress[] ownIpAddress = Dns.GetHostAddresses(HostName);
            string strIpAdresse = "";

            for (int i = 0; i < ownIpAddress.Length; i++)
            {
                IPAddress ip = ownIpAddress[i];
                string currentAddress = ip.ToString();
                if (ip != null && currentAddress.Length >= 7 && currentAddress.Length <= 15)
                {
                    strIpAdresse = ownIpAddress[i].ToString();
                    break;
                }
            }

            client.arc = GetArchitecture();
            client.macAddress = GetMacAddress(strIpAdresse);
            client.admin = GetAdminBool();

            List<GroupInfoModel> groupList = null;

            try
            {
                string ipAddress = Server_Client.Properties.Settings.Default.ServerIP;
                request = new sendRequest(ipAddress);
                groupList = request.getDatabaseGroups(client);

                if (groupList == null)
                {
                    MessageBox.Show("Probleme beim Herstellen einer Verbindung. Bitte überprüfen Sie Ihre Einstellungen.");

                    frmSettings settings = new frmSettings();
                    settings.ShowDialog();

                    try
                    {
                        groupList = request.getDatabaseGroups(client);
                    }
                    catch (Exception)
                    {
                        MessageBox.Show("Verbindung kann nicht hergestellt werden. Anwendung wird beendet.");
                        this.Close();
                    }

                    return;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Probleme beim Herstellen einer Verbindung. Bitte überprüfen Sie Ihre Einstellungen." + ex.Message);

                frmSettings settings = new frmSettings();
                settings.ShowDialog();

                try
                {
                groupList = request.getDatabaseGroups(client);
                }
                catch (Exception)
                {
                    MessageBox.Show("Verbindung kann nicht hergestellt werden. Anwendung wird beendet.");
                    this.Close();
                }

                return;
            }

            foreach (GroupInfoModel Group in groupList)
            {
                TreeNode CurrentGroup = new TreeNode(Group.Name);
                CurrentGroup.Tag = Group.ID;
                TreeView1.Nodes[0].Nodes.Add(CurrentGroup);
            }
    }