Also it would be very helpful for those who do not want their preferences buried down in the Program Files area, if they could just type in the name and path to where they want it or where they want to save it when saving it if that is a separate step.  Otherwise, when they click on the "..." browse button, they then have to browse to it manually.  It's a creature comfort and more consistent with standard Windows dialogue customs.  A shared preferences file could be out on a network shared drive somewhere (or even under SVN control requiring extra handling before saving).  Then browsing could be tedious.