How to check if PDM add-in is running

Do you know how I can check if the PDM add-in is running?

SolidWorks API support told me to use the following:

var object = swApp.GetAddInObject("ConisioLib.EdmVault.1")

If the object is null, PDM is not running. But this does not seem to work. I have attached my test macro so you can test as well.

SolidworksApi/macros