In our testing, we found this program to be exceptionally thorough. Not only was the data overwritten with the special bit pattern, the filename was truncated to one random character and the initial cluster allocation was removed. There was essentially no way to associate the directory entry with any particular cluster. To top off this fine program, it came with an excellent help file. The program was fully explained, including the locations of all the installed files.
Source code is also available.
The last item on our list was a disk wiper. This program doesn't know anything about partitions or file systems. Works with IDE and SCSI disks up to 8GB in size. With freeware IE Personalizer you can change the name that appears in the title bar, the spinning logo at the top right corner, personalize the toolbar with the graphic or photo of your choice and more. Another approach to customizing IE is to use the web based Hotbar application.