>Hi,
>
>I have a base class and many child classes based on this class. Example:
>

>my_base_class (in my_base_classes.vcx)
>my_class1 based on my_base_class (in my_class1.vcx)
>my_class2 based on my_base_class (in my_class2.vcx)
>*-- so on
>

>The base class (my_base_class) has a property CONFIG_NAME.
>I would like to find all child classes which have a value set in this property (that is value not empty).
>
>How would I do it? (I do use GoFish but not sure if this is the tool to find what I am looking for).
>
>TIA

I would use GoFish, and search for Config_name in all relevant files. GoFish will immediately show you the line that contains the property.