This article is about the details of zip file handling in the Shell Extension... Reading the first few paras I thought they would talk about the struggle it was

This article is about the details of zip file handling in the Shell Extension... Reading the first few paras I thought they would talk about the struggle it was to implement a shell namespace extension. I did a somewhat crappy one 20-something years ago and I still remember how confusing it was. At the time is spent all my days writing various COM things. I was very comfortable doing things like hand editing IDL headers to avoid changing GUIDs. NSEs were still the most baffling, brittle and confusing interfaces I've ever seen