How to restart Internet Explorer during Inno Setup installation?

My inno setup installs an Internet Explorer toolbar and I need to be able to restart IE from Inno Setup.  Does anyone know how to do this?
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frankmorrisonAsked:
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mirtheilSoftware DeveloperCommented:
Why do you need to restart just Internet Explorer?  If the toolbar is already installed and in memory, you should use the "restartreplace": flag and it'll be replaced when the machine is restarted.
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frankmorrisonAuthor Commented:
I don't need to restart the entire machine. I just need to restart IE.
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mirtheilSoftware DeveloperCommented:
I found the following (at http://news.jrsoftware.org/news/innosetup/msg52880.html) but haven't tested it.  

Page1 := CreateCustomPage(wpWelcome, ...
RadioButton1 := TRadioButton.Create(Page1);
RadioButton1.Parent := Page1.Surface;
RadioButton1.Caption := 'Close all Internet Explorer windows automatically';


function NextButtonClick(CurPageID: Integer): Boolean;
var
  hWnd, prevhWnd, i: Integer;
begin
  if (CurPageID = Page1.ID) and RadioButton1.Checked then begin
    prevhWnd := 0;
    hWnd := FindWindowByClassName('IEFrame');
    while (hWnd > 0) do begin
      PostMessage(hWnd, 16, 0, 0);
      prevhWnd := hWnd;
      hWnd := FindWindowByClassName('IEFrame');
      if (prevhWnd = hWnd) then begin
        for i := 1 to 10 do begin
          hWnd := FindWindowByClassName('IEFrame');
          if (prevhWnd = hWnd) then
            Sleep(100);
        end
        if (prevhWnd = hWnd) then
          hWnd := 0;
      end
    end
  end
  Result := True;
end;

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