There is help at 2 web sites Tek-tips.com look at the faq. at
robotparade (the site has changed so you will need to search) has a
form that has login screen. it has a module that get the user name.
you may also consider adding a screen if it is multi user to show who
is in the database. Also see faq re audit trail on forms. It will
track changes. You will also need to disable the shift key and
database window. Hope this get you started.