I have an db which contains code to connect with another app (QuickBooks).  
Not all users have it installed on their machines.  For some reason the db
generates a runtime error stating a hiddden module (that I've never heard or
seen).  I assume that it is liked to the fact that the user does not have the
app on his machine.  Is there a way to connect ref library on if when a
specific button is clicked?  or another approach to addressing this issue?

Is this case, error refering a hidden module... how can one track down the
source if I can't even see it in the project viewer?

Thank you as always,

Daniel P