I partially fixed that by splitting the mdb into a front end and a back end where the back end was only tables (no UI, no queries) and launching the front end m

I partially fixed that by splitting the mdb into a front end and a back end where the back end was only tables (no UI, no queries) and launching the front end mdb from a simple command script that copied it to the users tmp directory first. Then at least I could fix bugs in the UI and after a while that's where most of the bugs were.