El 20 de Mayo de 1999 Microsoft solicitó una patente para el HTML incluido de forma añadida e las ventanas.
Eso mismo es lo que hacen todas las barras añadidas en Internet Explorer. Entre ellas, la propia Barra de Google.
la patente en cuestión es la número 6,662,341 y dice algo así:
Method and apparatus for writing a windows application in HTML
A method, apparatus, and computer-readable medium for authoring and executing HTML application files is disclosed. An HTML application file is basically a standard HTML file that runs in its own window outside of the browser, and is thus not bound by the security restrictions of the browser. The author of an HTML application file can take advantage of the relaxed security. The author of the HTML application file designates the file as an HTML application file by doing one or more of the following: defining the MIME type as an HTML application MIME type; or using an HTML application file extension for the file. When a browser, such as the Internet Explorer, encounters one of the above, it processes the file as an HTML application file rather than a standard HTML file by creating a main window independent of the browser, and rendering the HTML in the main window.
Por Googlemania