DNCacheLAN.ItemIndex := 0 ;
  DNCacheLog.Checked := false ;
  DNCacheMax.Text := '' ;
  DNCacheMethod.ItemIndex := 0 ;
  IpConnType.ItemIndex := 0 ;
  IpConnsSecs.Text := '' ;
  IpFamily.ItemIndex := 0 ;
  LocalIPv4.Text := '' ;
  LocalIPv6.Text := '' ;
  LookupHost.Text := '' ;
  LookupHost.Items.Clear ;
  MonIpAddrChanges.Checked := false ;
  NameDnsOpt.ItemIndex := 0 ;
  NameHostName.Text := '' ;
  NameHostName.Items.Clear ;
  NameQueryType.ItemIndex := 0 ;
  NameHostName.Items.Clear ;
  NameProtoTCP.Checked := false ;
  NameServerIP.Text := '' ;
  NameServerIP.Items.Clear ;
  NameServerPublic.ItemIndex := 0 ;
  NeigbDevCache.Text := '' ;
  NeigbDevIPv4.Text := '' ;
  NeigbDevIPv6.Text := '' ;
  NeigbDevScan.Text := '' ;
  NeigbDevTot.Text := '' ;
  NeighbPermAddr.Checked := false ;
  PingCount.Text := '' ;
  PingLog.Checked := false ;
  PingQueryName.Text := '' ;
  PingQueryName.Items.Clear ;
  PingTimeoutMs.Text := '' ;
  ResolveIpRem.Text := '' ;
  RevExtra.Text := '' ;
  RevLookAddr.Text := '' ;
  RevLookAddr.Items.Clear ;
  TraceErrors.Text := '' ;
  WhoisQueryName.Text := '' ;
  WhoisQueryName.Items.Clear ;
  WhoisServer.Text := '' ;
  WhoisServer.Items.Clear ;