Hello
I remarked after the Windows taskbar (explorer.exe) restarted (it crashed then Windows restarted it automatically), the SpyShelter taskbar icon was missing.
SpyShelter.exe is still running though (2 processes).
That is a rather common problem with software icons on taskbar restart. I don’t remember how to circumvent it but I know there is a way (a Windows event? Or was it the way you register your icon?).
Have a nice day.