Windows has a new taskbar aka Superbar which is totally different from any previous version of Windows,In Windows 7 taskbar,it is a little bit big, It shows only Icon of the opened program, And when you hover your mouse on it you will get a live thumbnail preview of th running program.
But if you are using Ubuntu and missing this Superbar then you can get it with DockbarX.
By using DockbarX you can get Windows 7 Taskbar in Ubuntu.See the image below:-
Install python-wnck, python-gnomeapplet and python-numpy (DockbarX might be able to run without python-numpy).
$ sudo apt-get install python-gnomeapplet python-wnck python-numpy 1b. For previews libgtk2.0-0, libgx11-6 and libxcomposite1 needs to be installed (if they aren’t already). For recent and most used files you need zeitgeist 0.3.3 or later from zeitgeist ppa. None of these are needed for DockbarX to run and can safely be ignored if you are not interested in theses features.$ sudo add-apt-repository ppa:zeitgeist/ppa && sudo apt-get update $ sudo apt-get install libgtk2.0-0 libx11-6 libxcomposite1 zeitgeist
Change directory to where you unpacked dockbarx and run the setup.py install $ sudo ./setup.py install
Add DockBarX applet to panel (kill gnome-panel first if necessary).You can also run dockbarx in window (meant for debugging purposes, mostly): $dockbarx_factory.py run-in-window