There was a download of GroupBar 1.3 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software belongs to System Utilities. You can install this free PC software on Windows XP/Vista/7 32-bit.
We recommend checking the downloaded files with any free antivirus. The following versions: 1.3 and 1.0 are the most frequently downloaded ones by the program users. This free software is an intellectual property of Microsoft Research. The most frequent installation filename for the software is: GroupBar.exe.
From the developer:
GroupBar is a prototype for demonstrating the use of window-grouping features in an XP TaskBar-like interface. The window tiles in the GroupBar can be rearranged in any order or dragged and dropped into lightweight "groups" that allow one-click task-switching and convenient group operations.
You may want to check out more software, such as ResChanger 2005, Favorite Shortcuts or Glass Toasts, which might be related to GroupBar.