How do you add an explorer thumbnail to a file, to show the contents inside the file?

Question

I want to add an explorer thumbnail to a file to show the contents inside the file. This is just like what PDFs, BMPs, PNGs, GIFs, and all the other image formats do. The thumbnail is to be shown in Windows Explorer when the files are under Thumbnails view.

I don't mean I want to change the icon of my file type, but the thumbnails. If I change the icon, all the file types will have the same thumbnail. I want to dynamically change the thumbnail, depending on the contents inside the file. I think this can be done programmatically, but I don't know how.

Answer 1

Withthe folder visible in "My Computer" or "Windows Explorer" (ie in the "parent folder") click me VIEW menu, and select "Thumbnails"
Do same in it's own folder view, where windows can it will show a thumbnail of images etc

Answer 2

it is attainable that they are hidden. in the folder, click on procedures, Folder concepts after which click on View. under Hidden archives and Folders, verify the choice to coach Hidden. this could or could not be the reason inspite of the undeniable fact that it would not harm to attempt. wish it facilitates and stable success.