On Sat, 19 Jul 2014 18:34:24 +0000 (UTC),
wrote:
This works for MyDOc but what about Shared?

1. Click Start, and then point to My Documents.
2. Right-click My Documents, and then click Properties.
3. Click the Target tab.
4. In the Target box, do one of the following:

There's no convenient, built-in setting for that.

I suggest you use TweakUI:

http://windows.microsoft.com/en-us/windows/xp-downloads

The setting is under (in TweakUI):

My Computer - Special Folders - Folder = Shared Documents