Adds the file specified by FileName to the list of available add-ins.
Syntax
expression.Add(FileName, Install)
expression Required. An expression that returns an AddIns object.
FileName Required String. The path for the template or WLL.
Install Optional Variant. True to install the add-in. False to add the add-in to the list of add-ins but not install it. The default value is True.
Remarks
Use the Installed property of an add-in to see whether it's already installed.