It would be strange to have a front end on the network and the back end on a local C drive with the tables linked to the local drive. Not impossible - just would be a bad idea to run an FE over a network. Since you got the file from the network drive, label S, it is possible that code is running in a front end that you copied, trying to validate that the FE has not been copied and placed on some other local drive. Maybe someone there knows who Michael is and can shed light on what might be going on. Or find out if code is running and take if from there. It can be triggered by an AutoExec macro, or a form that is set to open on startup.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.