>Question: Where should such code best be put in MM (I'm new to MM)? I tried putting it in the BeforeReadEvents code, but then the OnShutDown() code fails. I tried putting it in Setup.Prg but I got other errors. A few other points: (a) The file is always in the same folder as the app's exe. (b) Users are not allowed to login unless the external file validates True (this is startup security, not login security). (c) FileIsValid() makes use of routines in a procedure file whose 'Set Proc To' happens in goApp.BeforeReadEvents.
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>Any thoughts? TIA, - Larry

Only one. Try the application object's .Init. Returning a .F. from init will prevent it from creating the app object and should exit cleanly.

Chris.