DISKdata 

DISKdata is a powerful explorer-like application for Windows 95/98/ME/NT/2000/XP that analyzes disk space utilization. Selecting a disk volume or folder displays a summary of its contents in report or chart format.
diskdata utility analyze disk space file report chart statistics size allocated efficiency

DiffnMerge 

Quick and Easy File and Folder Comparing. Compare and merge text files on a line by line basis. Recursively compare and synchronize folders and files for differences. Compare HTML files using Microsoft Internet Explorer browsing.
compare difference folder compare text compare file compare merge html compare

3Dfm 

3Dfm displays files and folders in an interactive, 3D display. You can rotate, pan and zoom the view, change folders, easily compare file and folder sizes, quickly search for files based on name, content, or size, view images, etc.
3d file manager filemanager search fast directx

Rename 

This purpose of this program is to rename image files obtained from digital cameras, scanners, etc.. All image files in a given folder may be renamed or only image files in the folder that match a selected file type.
rename image files rename files rename jpg files digital camera jpg fpx tiff cam

Careful Backup 

Careful Backup (tm) is the easiest way to backup your most important data to another folder or any type of removable media including floppy disk, ZIP, JAZ, MO, CDR/CDRW media and more.
backup software data save protect

WatchetZip! 

Zip direct to CD or DVD, unzip selected files, view or execute without unzipping, make self-unzipping executables, password protection. File selection, complete folder trees, hidden files, manage files and folders. Maximum compression
zip direct to cd or dvd cd writing dvd writing zip unzip self-unzipping view or execute files without unzipping backup archival