Load a stream containing HTML code into a TWebBrowser

procedure LoadStream(WebBrowser: TWebBrowser; Stream: TStream);
var
  PersistStreamInit: IPersistStreamInit;
  StreamAdapter: IStream;
  MemoryStream: TMemoryStream;
begin
  {Load empty HTML document into Webbrowser to make "Document" a valid HTML document}
  WebBrowser.Navigate('about:blank');
  {wait until finished loading}
  repeat
    Application.ProcessMessages;
    Sleep(0);
  until
    WebBrowser.ReadyState = READYSTATE_COMPLETE;
  {Get IPersistStreamInit - Interface}
  if WebBrowser.Document.QueryInterface(IPersistStreamInit, PersistStreamInit) = S_OK then
  begin
    {Clear document}
    if PersistStreamInit.InitNew = S_OK then
    begin
      {Make local copy of the contents of Stream if you want to use Stream directly,
                        you have to consider, that StreamAdapter will destroy it automatically}
      MemoryStream := TMemoryStream.Create;
      try
        MemoryStream.CopyFrom(Stream, 0);
        MemoryStream.Position := 0;
      except
        MemoryStream.Free;
        raise;
      end;
      {Use Stream-Adapter to get IStream Interface to our stream}
      StreamAdapter := TStreamAdapter.Create(MemoryStream, soOwned);
      {Load data from Stream into WebBrowser}
      PersistStreamInit.Load(StreamAdapter);
    end;
  end;
end;

參考至 http://www.devsuperpage.com/Articles/views/Delphi/Art_1-2146.asp