[rdiff-backup-users] Info about Windows links

[Greg Freemyer]

There has been some issues related to NTFS links recently.

I don't know much about Windows links, but I just read the description at:

http://www.pearlmagik.com/winbolic/  (below the screenshot)

I am still very confused, but maybe having some terminology will help with 
understanding.

Certainly it makes since to test each of the below types.

Apparently there are 3 kinds of links in the Microsoft world:

1) Shortcuts
2) Shell Links
3) Junctions

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1) Shortcuts
Shortcuts can be used for folders and files (executable and data??)

I think it is just a specialized file that tells explorer to redirect.

2) Shell Links
These are like UNIX/Linux symbolic links.  

Only directory linking is supported.  The kernel does NOT implement these.  It 
is done at the application level.

Note that a Shell Link and a Folder Shortcut seem to do the same thing, but are 
2 separate implementations!!!!!

3) Junctions
Junctions are like UNIX/Linux hard links.  Implemented in NTFS-5 and above.

They are interpreted by the MS kernel, so apps are not necessarily aware.

I gather junctions apply to both directories and files.  

In addition they can span drives. (i.e. C: and D:).  Seems very strange to me.

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