Something like this can give you the network login name.
http://www.mvps.org/access/api/api0008.htm

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Jerry Whittle, Microsoft Access MVP
Light. Strong. Cheap. Pick two. Keith Bontrager - Bicycle Builder.
> I have found out how to record the date and time of the last modification to
> a record, which is great. Can I also record the user that made the changes?
> If so,how?