Popup menu problemmer :(

Kode 

uses 
   Commctrl; 

procedure ShowBalloonTip(Control: TWinControl; Icon: integer; Title: pchar; Text: PWideChar; 
BackCL, TextCL: TColor); 
const 
  TOOLTIPS_CLASS = 'tooltips_class32'; 
  TTS_ALWAYSTIP = $01; 
  TTS_NOPREFIX = $02; 
  TTS_BALLOON = $40; 
  TTF_SUBCLASS = $0010; 
  TTF_TRANSPARENT = $0100; 
  TTF_CENTERTIP = $0002; 
  TTM_ADDTOOL = $0400 + 50; 
  TTM_SETTITLE = (WM_USER + 32); 
  ICC_WIN95_CLASSES = $000000FF; 
type 
  TOOLINFO = packed record 
    cbSize: Integer; 
    uFlags: Integer; 
    hwnd: THandle; 
    uId: Integer; 
    rect: TRect; 
    hinst: THandle; 
    lpszText: PWideChar; 
    lParam: Integer; 
  end; 
var 
  hWndTip: THandle; 
  ti: TOOLINFO; 
  hWnd: THandle; 
begin 
  hWnd    := Control.Handle; 
  hWndTip := CreateWindow(TOOLTIPS_CLASS, nil, 
    WS_POPUP or TTS_NOPREFIX or TTS_BALLOON or TTS_ALWAYSTIP, 
    0, 0, 0, 0, hWnd, 0, HInstance, nil); 
  if hWndTip <> 0 then 
  begin 
    SetWindowPos(hWndTip, HWND_TOPMOST, 0, 0, 0, 0, 
      SWP_NOACTIVATE or SWP_NOMOVE or SWP_NOSIZE); 
    ti.cbSize := SizeOf(ti); 
    ti.uFlags := TTF_CENTERTIP or TTF_TRANSPARENT or TTF_SUBCLASS; 
    ti.hwnd := hWnd; 
    ti.lpszText := Text; 
    Windows.GetClientRect(hWnd, ti.rect); 
    SendMessage(hWndTip, TTM_SETTIPBKCOLOR, BackCL, 0); 
    SendMessage(hWndTip, TTM_SETTIPTEXTCOLOR, TextCL, 0); 
    SendMessage(hWndTip, TTM_ADDTOOL, 1, Integer(@ti)); 
    SendMessage(hWndTip, TTM_SETTITLE, Icon mod 4, Integer(Title)); 
  end; 
end; 

procedure TForm1.Button1Click(Sender: TObject); 
begin 
  ShowBalloonTip(Button1, 1, 'Title', 
  'Balloon tooltip,http://kingron.myetang.com; updated by Calin', clBlue, clNavy); 
end;