FolderDog
Monitoring how much hard disk space is being used on a single computer can be a daunting task. Now imagine if you needed to monitor the amount of hard disk space is being used on 5 computers. What if different users on your network had a Shared storage area on your file server, each user had a... How would you make sure users are not using more space than you havea llocated? ... Warnings are sent, Admin is notified but no data will go lost. ... Registration for the current "LITE " version of Folder is completely free.
http://www.fungusware.com/files/Setup_FolderDog.msi - 1b - Download - Screenshot

Disk Recon
This utility combines all tools that you need to manage your hard disk space locally or on a network server. With its intuitive interface you can easily find all the information you need to make allocation decisions. Folder treeview with sizes, Duplicate filefinder, Folder monitor, File search...
http://www.blacksunsoftware.com/downloads/DiskReconSetup.exe - 2Mb - Download - Screenshot

Acronis Disk Director Suite
Acronis Disk Director Suite Acronis Disk Director Suite 10 is the only comprehensive partition and disk management suite that can help you manage partitions, recover accidentally lost or deleted partitions, install multiple operating systems on your computer and even more. ... - Perform advanced operations on your hard disk drive, such as restoring boot records, editing contents of hard disk sectors in different modes, viewing and editing Partition tables, FAT and NTFS partition boot sectors, root and other FAT folders.
http://doiop.com/acronis-diskdirectorsuite.exe - 16Mb - Download - Screenshot

D-Plus+Software Cleaner
D-Plus+Software Cleaner 2006 can permanently delete the history of your Internet and past computer activities. Why do you need to delete history? Maybe you don't realize that Windows and other software programs store history about what you have done, what documents you have used, what web sites... Furthermore, much of your activity information takes up valuable disk space, and recovering this space can be very beneficial. ... All these history are stored in your hard disk. ... If privacy and disk space are to be maintained, this process must be performed every time you use your computer.
http://www.freewebtown.com/dplus/downloads/setup.exe - 942Kb - Download - Screenshot

R-Drive Image
R-Drive Image 3. 0 is a potent utility providing disk image files creation for backup or duplication purposes. A disk image file contains the exact, byte-by-byte copy of a hard drive, partition or logical disk and can be created with various compression levels on the fly without stopping Windows... If you need to restore only certain files from a disk image, you can connect that image as a virtual disk and copy those files directly from the disk image using Windows Explorer or any other file utility.
http://www.drive-image.com/downloads/rdi_en_3x.exe - 11Mb - Download - Screenshot

WashAndGo
Keep your hard drives spick and span with WashAndGo. This easy to use utility provides an easy means of clearing your internet cache, recent documents, temp folder, errant uninstall entries, and more. You can also use it to scan your drives for 0-byte files and unneeded file types that do little... It enables you to clean up your whole system, so giving you back valuable disk space within seconds! ... WashAndGo includes several file types that are preconfigured as space-wasters, but you can easily edit this list as you see fit.
http://www.abelssoft.de/engl/washandgo.exe - 2Mb - Download - Screenshot

System and Disk Cleaner
Windows applications create several files on your hard drive for temporarily storing the data. These files are supposed to be removed when application terminates. Often, they will not been removed because of a program error, sloppy architecture, your system gets reset or does not shut down... Over time, these junk and obsolete files can accumulate to megabytes of wasted hard drive space, as well as turn into potential error-producing cross-linked drive references. ... System and Disk Cleaner targets these specific types of files which are missed by common disk utilities like Uninstaller,...
http://www.nice-soft.com/optimizer/download/tooldiskcleaner.exe - 682Kb - Download - Screenshot

XP Disk Cleaner
Windows applications create several files on your hard drive for temporarily storing the data. These files are supposed to be removed when application terminates. Often, they will not been removed because of a program error, sloppy architecture, your system gets reset or does not shut down... Over time, these junk and obsolete files can accumulate to megabytes of wasted hard drive space, as well as turn into potential error-producing cross-linked drive references. ... XP Disk Cleaner targets these specific types of files which are missed by common disk utilities like Uninstaller, Defrag...
http://www.xp-tools.com/download/xpdiskcleaner.exe - 658Kb - Download - Screenshot

Data Nuker
When you delete a file from Windows it just mark the file as deleted in file allocation table, but the data of the file is still on your hard disk, Windows does not physically remove deleted files from your hard disk. Emptying your Recycle Bin does NOT protect you at all. ... Shreds disk free space so you can even use shredder to destroy previously deleted files on your hard drive. ... Your sensitive files can be recovered, even after you format your hard disk! ... Completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns.
Http://malwareremover.com/download/mrdn/mrdn2000.exe - 3Mb - Download - Screenshot

TZ Shredder
When you delete a file from Windows it just mark the file as deleted in file allocation table, but the data of the file is still on your hard disk, Windows does not physically remove deleted files from your hard disk. Emptying your Recycle Bin does NOT protect you at all. ... Shreds disk free space so you can even use shredder to destroy previously deleted files on your hard drive. ... Your sensitive files can be recovered, even after you format your hard disk! ... Completely remove sensitive data from your hard drive by overwriting it several times with carefully selected patterns.
http://www.trackzapper.com/download/tzsh2001.exe - 2Mb - Download - Screenshot