Visual Directory Explorer

From SB Software:

Visual Directory Explorer is a tool that clean up hard drive. It presents a pie chart (or optionally, a bar chart) where each slice is a subdirectory on your computer. Clicking a slice in the pie chart brings up a pie chart of that subdirectory, allowing to recurse.
Features include:

• Display pie, bar, or horizontal bar charts
• Free download
• Find which programs are hogging space on your hard drive

when hard drive is full it can be incredibly difficult to figure out which programs are using up your disk space and how to free them. Sure, the install/uninstall program wizard tries to estimate how much space is used up by a program, but it's not always correct. Visual Directory Explorer performs a quick analysis of hard drive and calculates how much space each directory and file is occupying this. It presents this in two formats:

• a "tree" display which mirrors the file and directory layout on your hard drive, and
• a graphical "pie chart" (or bar chart) display that presents, in human terms, how much space is being used up.