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) provides for the creation of 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