procedure InitializeWizard;

 begin

  CustomPage := CreateCustomPage(wpLicense, 'Title', 'Sub title.');

  ExtractTemporaryFile('image.bmp');

  BtnImage := TBitmapImage.Create(WizardForm);
  with BtnImage do
  begin
   Parent := CustomPage.Surface;
   Bitmap.LoadFromFile(ExpandConstant('{tmp}')+'\image.bmp');
   AutoSize := True;
   Height := ScaleX(Height);
   Width := ScaleY(Width);
   Stretch := True;
   Cursor := crHand;
   OnClick := @ImageClick;
 end;

end;