Hi, Nelson.
>>>In VFP this works great, I'm able to access the child's object properties & methods, but as a com object called from a .Net c# project the properties & methos of thos child's objects are not available.
This is probably because you don't have information about your "child" objects in the COM Type Library. Without this information, C# can't see the child object and as a strongly-typed language, it will not let you compile code trying to access what it can't see as valid type.
(I read your message in a rush... I may be missing something...) :)
Claudio Lassala