FNC Demos do not work

The demos
TMSWeb_Pickers
TMSWeb_Calendar
result in a HTTP-Fehler 404.0 - Not Found error

I'm not sure where you get these links from.
The correct links are:
https://download.tmssoftware.com/tmsweb/demos/TMSWeb_FNCPickers/
https://download.tmssoftware.com/tmsweb/demos/TMSWeb_FNCCalendar/

Thanks for these details.
It is fixed now.