winstep

In the world of Windows, WorkShelf is the Swiss Army knife of User Interface enhancements. Intended as a multi-leveled desktop replacement, it is equally at home functioning as a tabbed program launcher. Like a dock, but better. It enables you to organize your most often used applications and documents into categorized shelves while taking as little screen space as possible: when not in use, it automatically collapses into a small strip of tabs.