>SET PROCEDURE TO parentclass.prg, childclass.prg
>oChild = CREATEOBJECT("childclass")
>
>** or
>SET PROCEDURE TO parentclass.prg
>oChild = NEWOBJECT("childclass","childclass.prg")

What I'm trying to do is:

oChild = NEWOBJECT("ChildClass", "ChildClass.prg")

Where ChildClass is defined as:

DEFINE CLASS ChildClass AS ParentClass

ChildClass can't be created because it doesn't know where to find ParentClass (which is in a different .PRG, like ParentClass.prg.