SuperPreview: teste seus sites em N browsers, mesmo sem tê-los na máquina

esse vídeo aí acima eu já tinha publicado tempos atrás, mas vale a pena relembrar já que o SuperPreview está disponível e é uma mão na roda pra testar páginas no IE6, IE7, e N outros browsers.  

Expression Web SuperPreview for Internet Explorer shows your web pages rendered in Internet Explorer 6 and either Internet Explorer 7 or Internet Explorer 8, depending on which version you have installed on your machine. You can view the pages side by side or as an onion-skin overlay and use rulers, guides and zoom/pan tools to precisely identify differences in layout. You can even compare your page comp to how the targeted browsers render the page.
Expression Web SuperPreview for Internet Explorer not only shows a high-fidelity rendering of how pages will look on different browsers, but it also identifies the element’s tag, size and position, applied styles, and location in the DOM (Document Object Model) tree so you can quickly fix the error.
Expression Web SuperPreview for Internet Explorer is a standalone, free application with no expiration

aqui está o link pra voce baixar: https://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=8e6ac106-525d-45d0-84db-dccff3fae677

(e o post original desse vídeo aí é esse aqui: https://blogs.msdn.com/renedepaula/archive/2009/04/28/superpreview-a-hora-e-a-vez-dos-web-standards.aspx )

(dica do Galileu.  tks man)