Can't distinguish between libraries and classes

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Libraries and classes both use VI.Library.Path property
It creates the following unexpected behaviours:

• If you run the plugin and specify library but it is a class, there will be no error and it will bring up the class folder
• If you run the plugin and specify class but it is a library, there will be no error and it will bring up the library folder
• If you run the plugin and specify library but the library contains a class that contains the VI, there will be no error and it will bring up the CLASS folder

I need to separate out libraries and classes in Get Paths from Ref.vi and work out a way of seeing if it is a library or a class.