How can Windows 7 disallow "tapping the mousepad (touchpad) to work as a click"?

How can Windows 7 disallow "tapping the mousepad (touchpad) to work as a click"?

I have a Dell Studio 15 notebook which is about a year old, and the old Vista on it has a tool in the control panel to disable "tapping the mousepad (touchpad) to work as a click", because very often, something is accidentally clicked on (online game or links)...