A download accelerator is one which helps in increasing the download speed by establishing various links to the same download server. So virtually it is like splitting the file to be downloaded into various parts and downloading each part separately at the same time to increase the speed and reduce the time of download of the file from the internet.
Some times when you browse folders in details view, the view may be cluttered and you might want to resize the column widths manually to get the complete details fit in a single screen in the horizontal direction so that you need not use the horizontal scroll bar to view the details which are off screen. Alternatively, Windows Xp provides an automatic way to adjust column width. Just select any row in the list and press they key combination, “ctrl + ‘+’of the numeric key pad”.