I have to type this command in the Menu Tools of Files Explorer.
Tools\Folders Options\Column Files Types\Folders\Advanced button
In the Modification window click on New,\Action
Question : When I go in Types Files for Folders, I See the Action column, but how can I type the line ? I check in the Directory Opus manual without success.
The button works, I just tested the code. This is how you create a toolbar button:
Settings > Customize > right click the toolbar > new > new button > double click the new button > in the function field enter the code I posted above (with the quotes)
BTW: To post an image just browse for the file and click add attachment.