RocketDock: Apple-izing the taskbar in XP

Below the screen of a Mac, there is a row of floating icons (called the "Dock") that provides users with quick access to launch programs, open documents, and access folders, among other conveniences.

RocketDock can bring the Dock Bar effect to Windows. RocketDock perfectly supports drag-and-drop operations, allowing items to be dragged from the desktop, File Explorer, Quick Launch bar, and Start menu. It also supports multiple monitors. Most importantly, this software, which has very low resource usage, is free. It supports custom skins, and you can replace the default icons with PNG or ICO files (with alpha transparency support).