Лимит на время выполнения программы

{ 
  In der Projekt Datei (.dpr): 
  In your project's file (.dpr): 
}

uses
  Forms, Sysutils, Dialogs,
  MyProgr in my_prog1.pas {Form1};

const
  email = 'my.mail@provider.xyz';
  homepage = 'http://www.myhomepage.com';

  // Limit the execution time to 04/21/2003. 
  // Gultigkeit auf 21. April 2003 begrenzen. 

  YearExp = 2003;
  MonthExp = 4;
  DayExp = 21;

 function CheckDate(y, m, d: Integer): Boolean;
 begin
   Result := True;
   if (Date > EncodeDate(y, m, d)) then
   begin
     ShowMessage('End of usage exceeded. Download a new'+
                 'version at' + ^j + homepage+ ^j + ' or contact: ' + email);
   Result := False;
   // halt; 
end;

end;

{$R *.RES}

begin
  if CheckDate(YearExp, MonthExp, DayExp) then
  begin
    Application.Initialize;
    Application.Title := 'Some Title';
    Application.CreateForm(TForm1, Form1);
    Application.Run;
  end;

end.