A free duplicate file cleanup tool for Windows 98se/NT/ME/2000/XP.
CloneSpy can help you free up hard drive space by detecting and removing duplicate files. Duplicate files have exactly the same contents regardless of their name, date, time and location. Also, CloneSpy is able to find files that are not exactly identical, but have the same file name. Perhaps you have different versions of a file and you want to find all of them and remove the older versions. CloneSpy can also find zero length files. These are files that have no content.
UltraShredder deletes sensitive files by overwriting them with random characters, saving it to disk each time, and then bypasses the recycle bin, thus acting as your personal, portable file shredder. If the file were to be recovered by a data recovery program, they would only be able to see unintelligible characters on disk where the file used to be. The program is a great tool to destroy sensitive data, and is very small with a minute memory footprint, and makes no changes to your system whatsoever.
Instant File Name Search (IFNS) is a freeware tool especially designed for filename searches. Instantly search files by name or wildcards on your computer or local network. IFNS offers support of Boolean operators (AND, OR, NOT), database management (you can create several databases: my computer files, local network music, CD #1 files etc.), hot keys and a convenient, Explorer like interface.
SyncToy is a free PowerToy for Microsoft Windows XP that provides is an easy to use, highly customizable program that helps users to do the heavy lifting involved with the copying, moving, and synchronization of different directories. Most common operations can be performed with just a few clicks of the mouse, and additional customization is available without adding complexity. SyncToy can manage multiple sets of directories at the same time; it can combine files from two folders in one case, and mimic renames and deletes in another. Unlike other applications, SyncToy keeps track of renames to files and will make sure those changes get carried over to the synchronized folder.