Google Desktop no relation Microsoft Windows systems
Google Desktop was a computer program with desktop search capabilities, created by Google for Linux, Apple Mac OS X, and Microsoft Windows systems. It allowed text searches of a user's email messages, computer files, music, photos, chats, Web pages viewed, and the ability to display "Google Gadgets" on the user's desktop in a Sidebar.
In September 2011, Google announced it would discontinue a number of its products, including Google Desktop. The reason given was that "In the last few years, there’s been a huge shift from local to cloud-based storage and computing, as well as the integration of search and gadget functionality into most modern operating systems. People now have instant access to their data, whether online or offline. As this was the goal of Google Desktop, the product will be discontinued.Sidebar
A prominent feature of the Google Desktop is the Sidebar, which holds several common Gadgets and resides off to one side of the desktop.  The Sidebar is available on the Windows and Linux versions of Google Desktop.  The Sidebar comes pre-installed with the following gadgets:Gadgets and plug-ins
Desktop gadgets are interactive mini-applications that can be placed anywhere on the user's desktop – or docked in the Sidebar – to show new email, weather, photos, and personalized news.  Google offers a gallery of pre-built gadgets for download on the official website.  For developers, Google offers an SDK and an official blog for anyone who wants to write gadgets or plug-ins for Google Desktop.  An automated system creates a developer hierarchy called the "Google Desktop Hall of Fame", where programmers can advance based on their gadgets' number and popularity.
The SDK also allows third-party applications to make use of the search facilities provided by Google Desktop Search. For example, the file manager Directory Opus offers integrated Google Desktop Search support.
no relation