unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ScktComp;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    Client: TClientSocket;
    Server: TServerSocket;
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  strCommand: string;
begin
  begin
    Server.Port:=44044;
    Client.Port:=44044;
    Client.Host:=Edit1.Text; // Client-IP z.b.: 192.168.0.1
    Server.Open;
    Client.Open;
    strCommand:='Command1';
    if Client.Active = true then
    begin
      Client.Socket.SendText(strCommand);
    end;
    Client.Close ;
    Server.Close ;
    strCommand:= '';
  end;
end;

end.