You could use Access as the BE and share the server.
Install the BE in its own folder in the server. The folder should have a short name with no spasms and be one down from the root.
On each user's machine:
Create a mapped drive to the folder the BE is in.
Install the FE.
Use the linked table manager (tools, database utilities, linked table manager) to link the tables to the BE. (Do one FE then copy to other machines.)