Access function during a DO LOOP Pause Control

[TraceWilliams]

Is there a function or command I can insert into a DO LOOP that creates a pause before excuting a function?

I am creating a function to remove all users from my database for maintenance and want to warn them and give them 90 seconds to complete their work before the database closes. However, Access locks up during the execution of the DO LOOP.

PLEASE HELP!