I have designed a "Notifier" that is supposed to remind me about things I have to do at a certain hour.
The form shows itself and is active by means of the SetFocus command when the time has come but NOT on top of the application that I am using at the very moment i.g. Excel.
Thus, I do not get aware of the alarm. Of course there could be an acoustic alarm also but I would prefer it more discreet.