Windows has had Unix-style symbolic links and hard links since NTFS 5.0 (meaning Windows 2000 and later), but many Windows users don't seem to know about them. These are not the relatively useless Windows Shortcuts that appear on your Explorer context menu when you right-click. The article Windows Symbolic and Hard Links on shell-shocked is a great article on the subject, but I thought I would put a little quick HOWTO blurb here for GLAST users.
All of the following tools are free (as in price).
NTFS Link (for GUI)
Although this functionality is built-in to Windows 2000/XP, there are several extensions available to make working with symlinks more comfortable from Explorer since Microsoft didn't include this functionality in the context menu. My favorite tool is NTFS Link.
NTFS Link is a Shell Extension that provides its functionality through the Explorer context-menu when you right-click. In the figure below, notice the NTFS Junction Point and NTFS Hardlink options. Another cool feature is that the extension knows about outstanding symlinks, so that if you move, remove or rename the target, the shell extension will warn you and give you the option of updating all of the references.
Junction (for command-line)
For you command-line users, there is the
junction command by Mark Russinovich to make command-line useage more pleasant. This would probably be really useful for our Windows installer area when we get that set up.
This is the blurb (cut-and-pasted) from the Sysinternals about the