You can monitor the activity on a Fileshare Server by pressing F2 from the same session in which you started the server. This turns on Fileshare's trace facility, which displays file requests as they occur. For each request, you see the user identifier, opcode, requested filename, and file status bytes of the reply to the user.
You should use this facility only as a diagnostic aid, since it can degrade performance. Press F2 again to turn it off.