Dupli Find
Dupli Find locates duplicate lines in textfiles, Excel spreadsheets and Word documents. Found duplicates are reported and can be easily removed from the file. Custom scripts can be used to narrow down the search for better results. Dupli Find can also be used as a general text utility that... o Verify serial number generators, where each line must be unique. ... o Modify each line in a file using your own scripts. ... o Gather statistics from your data files. ... o Merge several newsletter files into one.
http://www.rlvision.com/script/download.asp?file=DupliFind40.exe - 807Kb - Download - Screenshot

Dupe Checker PRO
Dupe Checker PRO locate and operate over the duplicated and unique files and folders, empty files. Dupe Checker PRO will find all dupe files and folders for the same names, file duplicated content and size, empty files and folders. Dupe Checker PRO shows you all duplicated files and Folders, and... Dupe Checker PRO will help you copy, remove duplicate files, move dupe files and folders from place to place.
http://www.atory.com/download/dupe_checker_pro-beta.exe - 2Mb - Download - Screenshot

Duplicate Payment Detector
Cash recovery tool - detection of duplicate payments and other transactions. Identify any type of duplicate item such as invoice payments, employee expense reports, duplicate inventory items, fixed assets, etc. Open source database SQLite.
http://www.ezrstats.com/download/EZSDPD.exe - 3Mb - Download - Screenshot

WinPure ListCleaner Pro
WinPure ListCleaner Pro is the award-winning data cleansing, list cleaning and dedupe software that cleans, corrects, de-duplicates, and standardises lists from Excel, Access, ACT! , text files and other databases. It can handle any type of lists including contact address details, email... For example, if the list you're cleaning is a contacts list, removing duplicates saves on postage expenses but more importantly prevents gaining an unprofessional image of your business. ... In addition to checking for exact duplicates, the program can analyse partial strings of data in its comparison...
http://www.leivesley.pwp.blueyonder.co.uk/WinPureListCleanerProV2.EXE - 16Mb - Download - Screenshot

IMCaster UIN Manager for ICQ
IMCaster UIN Manager is a fast and easy to use software tool to manage your ICQ UINs. It allows you to centrally manage a list of ICQ UINs without any duplicates and verify the validity of your UINs. It is not a ICQ spam software. Key Features - Maintain a bulk list of ICQ UINs, get rid of... - Send message from your UINs. ... - Import/Export to and from a text file. ... - Change Passwords of UINs in bulk. ... - Verify the validity of your UINs and correctness of passwords with ease.
http://www.imcaster.com/Downloads/uinmansetup.exe - 2Mb - Download - Screenshot

AcuteFinder
AcuteFinder is a handy shareware utility that finds duplicate files on your computer. You can then delete the extra copies or move them to an archive directory, saving a lot of disk space and reducing clutter. AcuteFinder does not only take into account items like file name, size or timestamp,... Fast and easy way to clean up your disks! ... The list of duplicate files can be sorted, printed, exported and acted upon. ... Includes tools to calculate checksum for any file, and find empty files or folders on your disk.
http://hugmot.swmirror.com/AcuteFinder_setup.exe - 2Mb - Download - Screenshot

More Space
More Space will help you SAFELY free up valuable disk space by targeting those files that are large, obsolete or duplicated. This version includes a CRC checking algorithm that will make sure that the contents of all of your duplicate files are indeed the same. ... tmp", *. ... A quick clean feature allows you to quickly identify files by extension for deletion such as '*. ... old, *. ... bak, etc. ... Includes plenty of 3D disk statistics. ... Functions include duplicate search, file hog search, and date search.
http://members.aol.com/mystuff44/morespc.exe - 1Mb - Download - Screenshot

MailList Manager
MailList Manager is a tool for organize your emails lists. MailList Manager have many great features, such as merge lists, sort, remove duplicates, special filters and formats. MailList Manager have made managing lists of quick and easy. MailList Manager know how to Merging Lists, how to Split... Remove Duplicates and Filter for Emails from one list specified into another list. ... Save Result with different formats - One Email per line format or separate mails by TAB or by Commas. ... Show Statistics for end list MailList Manager.
http://www.advertisertools.com/download/mail_list_manager.exe - 718Kb - Download - Screenshot

Music Express
Music Express is a fast full-featured application for organizing and managing large collections of Audio CDs and music downloaded from Internet, which lets users search, rename and organize files on disks, search for duplicates, print file lists and CD covers. ... The Duplicates window generates a list of duplicate files and allows you to delete them, saving space on your disk. ... The batch scanning function for CD/DVD has been speeded up allowing more discs to the collection. ... Music Express has a row of time-savings solutions.
http://www.wizetech.com/download/mex.exe - 2Mb - Download - Screenshot

Duplicate File Killer
It can scan and delete all duplicate files and zero-sized files on the hard driver. It can scan and distinguish from filename, extensions and date. It creates lists of duplicate and zero-sized files. You can get a detailed statistics about duplicate and zero-sized files and optional search... It can run or open files directly from the list.
http://www.acezip.net/dfk185.exe - 3Mb - Download - Screenshot