I am looking for a way to accomplish the following when a user logs into a
specific workstation:

Once a day from a workstation with a specific MAC address test for the
existence of a specific file and if the file exists copy it from the
workstation to a network drive.

So I think the actual test for existence and copying portion will be handled
by an external DOS script something like

IF Exists C:\direc\myfile.txt copy c:\direc\myfile.txt q:\
(Although, this doesn't seem to work...)

but how do I test for the MAC address and run only once a day?