On the bad side, the free version does have some limitations which can be annoying.
With tons of beautiful themes for ObjectDock available online, you're able to use it to customize your desktop and have your Windows PC looking a little more like a Mac OS X desktop. The ObjectDock bar can reside on either side of your desktop and automatically hides itself when you're using a full-screen program. Hovering over icons also reveals a label describing the icon.
Similar to Linux and Mac OS X docks, this one includes smooth transitions when you hover your mouse over the icons it displays. Using this dock for Windows is extremely easy: all you have to do is drag the icons which you would like included onto the ObjectDock icon bar. ObjectDock is a freeware, Mac OS X-style dock for Windows which includes an icon bar, access to files and folders and also provides quick access to useful utilities.