I don't know what you mean exactly by 'an empty program.exe explorer window' ..
The closest thing it reminds me of is a pop-up 'Tip of the day' or something like that which appears automatically at start-up if you don't deactivate it. This is done by clicking the bottom left checkbox in this window, saying 'Don't show it next time' or something with that meaning anyway.
Did that answer your question ?
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The world is my oyster !