Still not able to use it with Kontakt. Help please

Years have past since I purchased this midi… I even forgot the name… I would like to be able to pilot Kontakt with the same simplicity I have done for years with my Roland VG-99. Can somebody explain to me how does it work, what has to be done so I can finally use my … I forgot the name.

You start the “MIDI Guitar 2” app.
This app can load VST synths and instruments in the “instrument” slot.
If your Kontakt vst isnt listed there yet, open “plugins” and do a “save scan”.
This is needed once to get a list of current VST fx and instruments from your system.