var si: TStartupInfo = (cb: SizeOf(si));
procedure TForm1.Button1Click(Sender: TObject);
var pi: TProcessInformation;
begin
CreateProcess(nil, 'C:\xxx\xxx\xxx.exe', nil, nil, False, 0, nil, nil, si, pi);
CreateProcess(nil, 'C:\xxx\xxx\xxx2.exe', nil, nil, False, 0, nil, nil, si, pi);
end;