Built into NW6 is somthing called Native file access.It allows use of the client software of different machines(Windoze ,Macs) to access NW6 without a full Novell client.There is a small footprint client (couple of megs )that does get loaded,but it is tranparent to the user.It is kind of a redirector to the Novell box.
Here is a url for the documentation.(watch out for extra spaces added by these forums when you cut and paste)
http://www.novell.com/documentation/lg/nw6p/index.html?page=/documentation/lg/nw6p/native/data/hz8pck9v.
html
If you have upgrade protection for NW6 ,there is a syncing product that comes with NW6.5 for free called a Dirxml connector for AD.Essentially it can sync users and passwords between AD and Edir giving you a single sign on experience.