Windows Explorer integration look like in SolidWorks PDM

Question

I looking for information about integration to Win Explorer in generally and about add custom column in particular. I'm already found some about Cloud Sync Engines, but it's only for Win 10 and newer, when i need to support Win7. I found some about Property Handlers, but it's can't be used for all file types at once. I'm also read a little-bit about Developing with Windows Explorer. And something about Folder View, but in "legacy" section. I also found Idiots Guide to Writing Shell Extension , but i think is legacy too, and some features not working anymore.
I also saw this panel:

And i heard that can be implemented with IDeskBand. Bar like that can be enough for me for use instead of column. But i'm not sure is really can be implemented with information at this link or it's more complicated and need something else? It's my first question.

I also was experience to use SolidWorks PDM where we can see some awesome integration with a variety of custom elements.

And custom tools for search:

And my question number 2, is: Have someone information about how it's all realized? How make it?
In particular:
3. How they implement custom columns?
4. How to add fully custom panel? (On picture it's panel with tabs in down-side)
5. Anyone test SW PDM on latest Windows versions? All of that features is works in latest Win?

P.S. Images take from SD PDM sites, and footnotes with numbers mean nothing.