unit Unit2;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
    apppath : string;
begin
    apppath := extractfilepath(application.ExeName);
    WinExec(pchar(apppath+'Project1.exe '+edit1.text), SW_SHOW);
   // ShellExecute(application.Handle, 'open', pchar(apppath+'Project1.exe'), nil, nil, SW_SHOWNORMAL);
end;

end.