You’ll have to restart IE for the change to take place.
Obviously you would set it back to 1 to put the command bar back in place.
Maximize Your IE7 Tab Bar Space by Removing the Command Bar
One of the many annoyances I have with Internet Explorer is the fairly small default width of the tab bar... as somebody who opens a lot of tabs all the time, it becomes difficult to manage. With a simple tweak, we can remove the command bar that usually sits on the right of the tabs.
