In the license agreement it says "LIMITED DURATION: The License to this product is of limited duration and shall expire on March 30, 2005. After such date, this product will not be usable and its features will be unavailable to you."
As an FYI - after installing Deer Park, Firefox 1.04 would not open correctly. All of the toolbars, both top and bottom were distorted and left clicking on a toolbar opened an unusable black window instead of a menu.
