Shell Extension file encrypt decrypt

[Zeratul]

Hi I want to make a shell extension to encrypt and decrypt files but I have absolutely no experience with shell extensions, I am looking for tutorials/guides on how to start
I have only found https://www.codeproject.com/articles/830/the-complete-idiots-guide-to-writing-shell-extensi
but it is outdated and source codes no longer work.

[Thomas1965]

Did you see this article?
https://www.apriorit.com/dev-blog/357-shell-extentions-basics-samples-common-problems