1)   Fretless Space Explorer 1.0.27.102
Space Explorer quickly shows each folder size. Unlike similar utilities, it quickly analyzes all folders simultaneously. No more waiting to find what you're looking for while it scans your entire drive or folders you don't care about.
size, file size, folder size, disk size, hard drive, folder, directory, disk, disk space, compress,

 2)   zsCompare 2.42
Manually or automatically compare files, folders, text files, source code, Word documents, Excel spreadsheets, and pdf files. You can even compare files within zip files. Includes zsDuplicateHunter a powerful duplicate file finder for free!
compare, synchronize, file, folder, text, word document, excel, pdf, backup, zip,

 3)   StrongSearch 1.3.1
StrongSearch is an effective and flexible LAN file search utility that produces exact matches to your search criteria quickly and reliably, regardless of the network size. This multi-threaded utility lets users set several masks at the same time.
LAN, network, file, search, find, file size, file attributes, file mask, shared folder, folder,

 4)   View Folder Size Pro 4.20
Have you ever wondered: How large is this folder? Probably you tried to understand where free disk space is or prepared specified size folder for CD/DVD recording. With ViewFolderSize Pro you will always know the total size of all of your folders.
folder size, file size, folder, file, size, utility, shell, enhancement, explorer, windows,

 5)   View Folder Size 4.10
View Folder Size helps you to view total folder and file sizes directly in the Windows Explorer. Main features: integration with Windows Explorer, file sizes representation in any units, convenient interface.
folder size, file size, folder, file, size, utility, shell, enhancement, explorer, windows,

 6)   InternetFileSize 3.60
Haven't you ever met with http:// or ftp:// links with unknown or incorrect file size. But now it is a not problem with Internet File Size. Now you can easily determine file size, type, modification date and real URL in the internet.
file size, size, internet file size, internet, utility, get size, shell, enhancement, shell enhancement, explorer,