Bing search engine from Microsoft displays new image each day on its search home page. Microsoft today has released a new application, Bing Desktop that downloads the Bing image of the day and set it as windows desktop background.
Apart from changing the wallpaper, the application provides a Bing search box that can be pinned to the centre or top of the desktop. You can type your search term inside the search bar and it launches your default browser with Bing search results.
You can press Windows key + H pop up the Bing search bar. Bing Desktop is available for Windows 7.