Check if Internet Explorer is running and get the source of the page that is displayed

Problem/Question/Abstract:

I need to identify if IE is already running on the machine, and if so, read the source of the HTML being displayed

Answer:

{ ... }

uses
  SHDocVw, MSHtml;

{ ...}
var
  ShellWindows: IShellWindows;
  Browser: IWebBrowser2;
  i: integer;
  Doc: IHTMLDocument2;
  { ...}
    { Use ShellWindows to get the active browser window }
  ShellWindows := CoShellWindows.Create;
  for i := 0 to ShellWindows.Count - 1 do
  begin
    if Supports(ShellWindows.Item(i), IWebBrowser2, Browser) then
    begin
      Doc := Browser.Document as IHTMLDocument2;
      Memo1.Clear;
      Memo1.Lines.Add(Doc.body.innerText);
      { ...}