function Swf2Exe(S, D, F: string): string;
 //S = Source file (swf)
 //D = Destionation file (exe)
 //F = Flash Player
var
 SourceStream, DestinyStream, LinkStream: TFileStream;
 flag: Cardinal;
 SwfFileSize: Integer;
begin
 Result := 'something error';
 DestinyStream := TFileStream.Create(D, fmCreate);
 try
  LinkStream := TFileStream.Create(F, fmOpenRead or fmShareExclusive);
  try
  DestinyStream.CopyFrom(LinkStream, 0);
  finally
  LinkStream.Free;
  end;
  SourceStream := TFileStream.Create(S, fmOpenRead or fmShareExclusive);
  try
  DestinyStream.CopyFrom(SourceStream, 0);
  flag := $FA123456;
  DestinyStream.WriteBuffer(flag, SizeOf(Integer));
  SwfFileSize := SourceStream.Size;
  DestinyStream.WriteBuffer(SwfFileSize, SizeOf(Integer));
  Result := '';
  finally
  SourceStream.Free;
  end;
 finally
  DestinyStream.Free;
 end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
 Swf2Exe('c:\somefile.swf', 'c:\somefile.exe',
  'c:\Program Files\Macromedia\Flash MX\Players\SAFlashPlayer.exe');
end;