The OwnerAddInProgID property of an OlapTreeNode object contains the program ID of the add-in that owns the tree node.
String
Read/write
This property is set automatically by the Microsoft OLAP Services Add-ins Manager library. The program ID is set in the registry when the add-in is registered, and it consists of the program name of the add-in and the name of the class used to instantiate the add-in. For example, the Report Add-In example uses the following program ID:
ReportAddIn.ReportClass