<< If this were a server-based network instead of client-based/peer-to-peer, then you could use the master list off the server. >>
Our network is indeed server-based; each user has to logon to a central domain in order to use the resources on the network. Do you mean I can get a list off the server by going to the Security tab in the folder I'm sharing, and choose Add, and then go to Look in: and choose the domain server? What happens if that server is not listed in the pull-down menu?