The NTFS file system implemented in NT4, Windows 2000, Windows XP and Windows XP-64 supports a facility known as hard links (referred to herein as Hardlinks). Hardlinks provide the ability to keep a single copy of a file yet have it appear in multiple folders (directories).
They can be created with the POSIX command ln included in the Windows Resource Kit or the fsutil command utility included in Windows XP. Thus, using standard Windows facilities Hardlinks can only be created at the command prompt, which can be tedious, especially when Hardlinks to multiple files are required or when one only makes occasional use of Hardlinks. Support for Junctions in standard Microsoft software offerings is even more limited than that offered for Hardlinks.
Link Shell Extension (LSE) was designed to help you create Hardlinks , Junctions , Volume Mountpoints , and Vista's Symbolic Links, (herein referred to collectively as Links) and a Folder Cloning process that utilises Hardlinks or Symbolic Links. LSE, as its name implies is implemented as a Shell extension and is accessed from Windows Explorer, or similar file/folder managers.
The extension allows the user to select one or many files or folders, then using the mouse, complete the creation of the required Links - Hardlinks, Junctions or Symbolic Links or in the case of folders to create Clones consisting of Hard or Symbolic Links. LSE is supported on all Windows versions that support NTFS version 5.0 or later, including Windows XP-64 and the Vista operating system. Hardlinks, Junctions and Symbolic Links are NOT supported on FAT file systems, and nor is the Cloning process supported on FAT file systems.
Within this document the terms action button and action (pop up) menu are used to refer what are often referred to as the right mouse button and the pop up menu that is displayed when that mouse button is pressed (often referred to as the context menu).
Recognising that people swap the usage of their mouse buttons, Microsoft refer to the primary and secondary mouse buttons. We prefer to refer the mouse buttons as the Select button and the Action button; and rather than terms such as Context Menu, Shell Menu, Right Mouse Menu we use the term Action menu.

Limitations:
· Hardlinks can only be made on NTFS volumes, under the supported plattforms.
· Hardlinks can only be made within one NTFS volumes, and can not span accross NTFS volumes.
· Junctions can not be created on NTFS volumes with NT4.
· The Pick Link Source and Drop ... choices are only visible, if it's possible to create Hardlinks/Junctions/Symbolic Links. E.G.: If you select a file on a FAT drive and press the action button, you wont see the Pick Link Source in the action menu, because FAT file systems, don't support Hardlinks/Junctions/Symbolic Links. This also happens, if you select source files on a network drive, or select a file as destination, etc.
· There is an OS limit of creating more than 1024 hardlinks per file. This is less known, but it is there. You can check this by creating 1024 hardlinks for one file via the following .bat file

What's New in This Release:
· Speed improvements during SmartCopy/SmartMirror/HardlinkClone and Delorean Copy.
· Introduced new Heap Manager Rockall for x64 and x86 builds to gain performance.