Juan,

The class can run this test to see if it's a contained object or not:

if ( type( "this.parent" ) == "U" )
   * I am a poor orphaned object all alone in a vast sea of objects
endif

>I have a custom class (.vcx) that I used in code (CREATEOBJECT(.....)) and also by dropping the class in forms.
>In the init of the form I have code that runs all the time. The problem is that in this code I reference thisform.
>When I create a object with CREATEOBJECT(.....) i don't have a form as a parent class for the object and the code crash. I can't use try...catch with a VARTYPE(object.parent) because class is used in vfp7 and vfp9 environment.
>I couldn't find a command that can tell me if the object has a parent class or not.