This default folder contains shortcuts (links) to all ActiveX controls (.OCX or .DLL files) registered on your system. These controls are either registered automatically by the Setup program, or are controls you purchased and registered separately by running the vendor’s setup program.
The Gallery regenerates links to registered ActiveX controls every time you open it, based on the current state of the registry. This has certain implications:
To unregister an ActiveX control, see Deleting a Gallery File or Folder.
Tip When you use Windows Explorer to drag an ActiveX control link from a default folder, the Gallery creates a shortcut to the ActiveX control in the new folder so that you don’t have to worry about maintaining it in more than one location.