Hi,
Thank you for your response.
Actually after investigations, ....silly thing, I re-installed Kontakt 6, and when this window pop-up (attached below) , by default, VST plugins is disabled !.
So of course, you have to enable it !
Works fine !!! Found kontakt.dll in the right path in Program Files.
![](https://img.9553.com/uploadfile/2020/0709/20200709104459773.jpg)