To use the F1 with custom help:
1. You must put the help file path and name into the Form's HELP FILE property. If you fail to do so (for EACH form and report), then the Access help file will come up on those forms/reports that do not have a help file property defined.
2. If you want context sensitive help, you must specify the topic number in the HELP CONTEXT ID propery of the control for which you want it to appear. Keep a 0 in the spots where you just want the main help file to appear when F1 is pressed.
That should do you.