Assembly: Microsoft.Office.Interop.Word (in microsoft.office.interop.word.dll)
The AddIns collection includes global templates or Word add-in libraries (WLLs) displayed in the Templates and Add-ins dialog box (Tools menu).
Use the AddIns property to return the AddIns collection.
Use the Add method to add an add-in to the list of available add-ins and (optionally) install it using the Install argument.
To install an add-in shown in the list of available add-ins, use the Installed property.
Use AddIns(index), where index is the add-in name or index number, to return a single AddIn object. You must exactly match the spelling (but not necessarily the capitalization) of the name, as it's shown in the Templates and Add-ins dialog box. To install an add-in shown in the list of available add-ins, use the Installed property.
If the add-in is not located in the User Templates, Workgroup Templates, or Startup folder, you must specify the full path and file name when indexing an add-in by name.
Use the Compiled property to determine whether an AddIn object is a template or a WLL.