An excellent explanation Pat.
To specifically join a workgroup you need to run the work group administrator by locating and double clicking the file Wrkgadm.exe. In the Workgroup Administrator dialog box, click Join.
Type the path and name of the workgroup information file that defines the Microsoft Access workgroup you want to join, and then click OK, or click Browse and then use the Select Workgroup Information File dialog box to locate the workgroup information file.
The next time you start Microsoft Access, it uses the user and group accounts and passwords stored in the workgroup information file for the workgroup you joined.
Autoeng