Sean,

All is tricky.

But all within some projects or in a known number or so it might be done.

Run the classbrowser. (DO (_BROWSER)) Add all possible projects / vcx's and scx's (a pjx will add all of its vcx/scx) via the button with the yellow + icon.

Set display to Hierachical via context menu.

Set the filter to the BASECLASS of your class in the combobox.

Navigate to your class,
Open the node.

HTH

Agnes
>Hello,
>
>I was wondering if anyone knew of a way to find all classes that had a certain parent class?
>
>Thank you very much!