Always a better .....
OK, my fix is to check into the registry for that LOGILDA.DDL and remove that. It doesn't appear to be in stock Windows.
You can always check out AUTORUNS (a Microsoft title you find with google) and remove it there.
When I turn on my device, the first popup that appears is
Error in C:\\WINDOWS\SYSTEM32\LOGILDA.DDL
Missing entry: LOGICFETCH
All Logitech-related devices are removed form the computer's memory, but is still appearing. Do I have a virus or is there a fool-proof way to fix it?