Addons collection
Represents the set of installed add-ons known to an Application object.
To retrieve an Addons collection, use the Addons property of an Application object.
Version added
4.0
Remarks
The default property of an Addons collection is Item.
Installed add-ons are those Visio finds in its Addons or StartUp paths, or those that other add-ons have dynamically installed using the Add method of the Addons collection.