You can now set your Windows 7 desktop wallpaper to a live-updating theme featuring background images from the new search engine Bing.com.

1. Copy this text into Notepad:
   [[Theme]
   DisplayName=Bing

   [Slideshow]
   Interval=1800000
   Shuffle=1
   RssFeed=http://feeds.feedburner.com/bingimages

   [Control Panel\Desktop]
   TileWallpaper=0
   WallpaperStyle=0
   Pattern=

   [Control Panel\Cursors]
   AppStarting=%SystemRoot%\cursors\aero_working.ani
   Arrow=%SystemRoot%\cursors\aero_arrow.cur
   Crosshair=
   Hand=%SystemRoot%\cursors\aero_link.cur
   Help=%SystemRoot%\cursors\aero_helpsel.cur
   IBeam=
   No=%SystemRoot%\cursors\aero_unavail.cur
   NWPen=%SystemRoot%\cursors\aero_pen.cur
   SizeAll=%SystemRoot%\cursors\aero_move.cur
   SizeNESW=%SystemRoot%\cursors\aero_nesw.cur
   SizeNS=%SystemRoot%\cursors\aero_ns.cur
   SizeNWSE=%SystemRoot%\cursors\aero_nwse.cur
   SizeWE=%SystemRoot%\cursors\aero_ew.cur
   UpArrow=%SystemRoot%\cursors\aero_up.cur
   Wait=%SystemRoot%\cursors\aero_busy.ani
   DefaultValue=Windows Aero
   Link=

   [VisualStyles]
   Path=%SystemRoot%\resources\themes\Aero\Aero.msstyles
   ColorStyle=NormalColor
   Size=NormalSize
   ColorizationColor=0X6B74B8FC
   Transparency=1

   [MasterThemeSelector]
   MTSM=DABJDKT

2. Save the file as “Bing.theme”
3. Activate the theme. Double-click on the Bing.theme file to launch it. In the Subscribe to RSS Feed? prompt, click Download Attachments.

After following above steps, you’ll now see the Bing theme appear on your screen. It’ll also be stored in the “My Themes” section of your personalization options.  More information here.