Unfortunately, while a majority of Pd users use windows, there seem to be not a single windows hacker left... all the people willing to investigate such things have migrated to mac or linux.
Oh well, considering myself a Windows/PD developer, i'm still here... i can't say that i experienced that popup poppping up... but i'm using solely the devel branch - that is the place where i can fix things in time.
best greetings, Thomas