Vistas:

Behavior
Windows Explorer Client icon is not listed in the tree view of the Windows Explorer.

Solution:
To make the Windows Explorer Client icon visible in the tree view of the Windows Explorer, you have to enable the folder option "Show all folders" in the Windows explorer.
To enable this option please follow this description:

You can find the button "Options" in the tab "View" in the Windows Explorer, via this button you can open the window "Folder Options". Please enable the option "Show all folders", in the tab "View", and save this change afterwards.

In older versions  of the Windows operating system the option "Show all folders" can be found in the "General" tab of the "Folders Options" window and the "Folder Options"- window can be found in the menu "Tools - Folder Options".