>Thanks, Jim. That seems to fit with what's showing for this property, except for the first subclass, as you note. I'd like to see the Help description below worded such that the word "parent" follows the word "object's".
>
>Specifies the file name of the user-defined class library that contains the object's class.

It's actually a hint to VFP where to look for the definition of the parent. If it's "in this.classlib" and the parentclass is a base class, it knows it's the first level of subclassing. I agree it would be more consistent if it was empty.