Rick Rashid, the head of the Microsoft Research branch, demonstrates the usage of "Sideshow" on Windows XP, though it does show the program working on Legacy OS's, most likely Windows 2000. The video (I have provided) below.Sidebar originated in a Microsoft Research project called Sideshow (not to be confused with Windows SideShow.) It was developed in the summer of 2000, and was used internally at Microsoft.[2] It had many similarities to current desktop gadget software, including a clock, traffic reports, and IM integration.
The Sidebar appeared in "Longhorn" (Windows Vista) builds as early as September 2002, and was originally intended to replace the notification area or Quick Launch toolbar in Windows, but these plans were scrapped after the Longhorn "reset" in mid-2004.[3]
The Windows Sidebar was rebuilt for and began to appear in Windows Vista builds in the second half of 2005. Some reviewers and Macintosh enthusiasts have pointed out the Sidebar's similarities in form and function to Konfabulator (now Yahoo! Widget Engine), which appeared several years previously, and the Dashboard widget engine first included with Apple Inc.'s Mac OS X v10.4, which had been released a few months earlier.
In Windows 7, Windows Sidebar was renamed Windows Desktop Gadgets, and the sidebar itself is not present.
As of Q4 of 2011, Microsoft retired the Windows Live Widget Gallery stating: "In order to focus support on the much richer set of opportunities available for the newest version of Windows, Microsoft is no longer supporting development or uploading of new Gadgets." [4]
One build of "Sideshow" was leaked. It is unknown what platforms it works on, but it brings the sidebar to XP, and probably Windows 2000.
http://download.softpedia.ro/dl/f0e401c ... iNBETA.exe