Using the AVR ISPMKII programmer with Arduino IDE

Thanks for taking the time to share your findings @vdtech!

For anyone who experiences this problem and doesn't have a need for "Microchip IDE" for any purpose other than the drivers, a more "lightweight" solution will be to use the Zadig driver installation tool to install the libusbK driver for the AVRISP MKII programmer:

I provide instructions for doing that here: