unit MainForm;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, DCOMServer_TLB, ExtCtrls;

type
  TfrmMain = class(TForm)
    pnlBottom: TPanel;
    btnTest: TButton;
    pnlClient: TPanel;
    Label1: TLabel;
    ecServer: TEdit;
    procedure btnTestClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmMain: TfrmMain;

implementation

{$R *.DFM}

procedure TfrmMain.btnTestClick(Sender: TObject);
var
  FServer: ISimpleDCOMServer;
begin
  FServer := CoSimpleDCOMServer.CreateRemote(ecServer.Text);
  if FServer.AreYouThere then
    ShowMessage('I am here.')
  else
    ShowMessage('Where''d I go?');
end;

end.