'Win Tabber', and 'Vista Tweaker'

Win Tabber

Add tabs to every program, like a browser, tabbed putty, tabbed terminal or tabbed shell, tabbed anything! Multi tab your windows in seconds. Having multiple windows as tabs will give a better overview of your windows than before. Also having multiple SSH sessions by the click of a tab works faster and efficiently.

http://wintabber.com/

Vista Tweaker

Multiple tweaks for Vista in one interface, nice and simple. Tweaks are organized into tabs, each tab is subdivided in sections by group boxes. This way it is easy to find the tweak the user is looking for.

http://ajuaonline.com/