How to handle dynamic objects withou ObjectIdentifier property

 

Do you have only one object with the ATL* class name on this level in the object tree? In this case, you can use only the WndClass property with the ATL* value to map the object. Also, you can add the Visible or VisibleOnScreen property to create stronger criteria.

 

Also, I recommend that you watch this screencast demonstrating how to create reliable tests for dynamic objects.