Problem solved !! If I could have done an icon search...similar to a file search , I would have found the Reminder icon mentioned , and been done with this day one.
I "Googled" this pop-up pain , and reference to "Easy Internet Sign-up" as possible cause. I opened the folder on C: drive , and sure enough , there was that hand-globe icon sitting right there.
I renamed the .exe and a .dll file with the icon , and the pop-up stopped. I had no idea this folder still presided on my HD , as I've wanted it removed after each of 3 system restores that I've done.