What does the ctrl tab keyboard shortcut do in Windows Vista?

Dialog Box Keyboard Shortcuts: v CTRL+TAB - Move forward through tabs v CTRL+SHIFT+TAB - Move back through tabs v TAB - Move forward through options v SHIFT+TAB - Move back through options v ALT+underlined letter - Perform the command (or select the option) that goes with that letter v ENTER - Replaces clicking the mouse for many selected commands v SPACEBAR - Select or clear the check box if the active option is a check box v Arrow keys - Select a button if the active option is a group of option buttons v F1 - Display Help More list of the most popular keyboard shortcuts in Windows Vista at the source link below. v F4 - Display the items in the active list Sources: <a rel="nofollow" href="http://www.windowsvistamagazine.com/05582469248394138675/windows-vista-keyboard-shortcuts.html">http://www.windowsvistamagazine.com/05582469248394138675/windows-vista-keyboard-shortcuts.  more