Free duplicate lines in documen software for windows

Duplicates is a command line tool for finding duplicate and zero-byte files on your hard drive Duplicates is a little command line application developed to find duplicates and zero-byte files on your HDD. This tool is currently in beta.
System requirements:
- The .NET Framework (Mono has not been tested)
- Any version of Windows that supports .NET

Easy Duplicate Finder 2.2.4 is known as a free and easy-to-use utility which supports you to find and delete duplicate files. What hard disk space on your PC is occupied by duplicate files? Easy Duplicate Finder will show you.

Major Features:

1. Search for true duplicates (files with same contents);
2. Powerful search engine with fast files check;
3. Full binary (byte-by-byte) comparison;
4. Flexible Scan settings;
5. Convenient user interface;
6. Advanced Duplicate file management - remove only unnecessary duplicates;
7. Full Unicode support;
8. Export list of duplicates to HTML, TXT.

Duplicate File Hard Linker is a small command line tool to reduce the size of duplicate files on one partition Duplicate File Hard Linker is a small command line tool to reduce the size of duplicate files on one partition.
Unlike all other known tools in this application the files are not being listed, archived or removed but going to be hard-linked using NTFS hard links. The tool runs in Windows NT 4.0 / 2000 / XP and 2003 Server and requires a NTFS file system to run on.
Main features:
- Command line Tool for Windows NT4.0/2000/XP/2003
- Links duplicate files in file system using NTFS "Hard Link" facility. For further information please take a look to Website at Microsoft.
- Runs recursive through a tree of folders on one partition
- Compares all files byte-per-byte to ensure really only equal files to be hard linked
- Check-Mode (default) allows listing of all optimization possibilities. In this mode no changes will be done.
- Additional options allow control of which parameters of files will be compared, to check attributes and time stamps of files
- All read/compare operations were optimized for maximum performance and will reach almost the maximum throughput of the physical disk. The system will be loaded only in background.
- File system short named (8.3 Names) can be lost during hard linking. This can lead to problems with programs requiring 8.3 names.

Unduplicate is a small tray utility for removing duplicate lines of text from data held in the clipboard. Unduplicate is a small tray utility for removing duplicate lines of text from data held in the clipboard. When run, it will first display a small window that will allow you to have control over a few options affecting program operation.
When the options are set to your liking, you can hide the small window leaving the icon in the system tray, by selecting the "Continue" button. The "Close" button shuts the program down.
Your data may or may not contain a heading in its first line. The top three options are radio buttons that let you either protect the heading from being sorted (and possibly removed), force the heading to be removed, or say there is no heading.
It may be important that the original order of the data is preserved, apart from removal of duplicates (the first occurrence of a set of duplicates is always kept, 2nd, 3rd occurrences etc are deleted). The checkbox labelled "Maintain original order" is used for this purpose (defaulted to YES).
When you click on the tray icon with the LEFT mouse button, duplicate lines are removed from the clipboard in accordance with the option chosen.
If you click with the RIGHT mouse button, the small window is shown again,
in case you want to modify the options or close down.