>I create object1 using [scatter to name object1] I'd like to copy( or clone) the object1 to object2, but I DON'T want to use
>[scatter to name object2]

You could use AMEMBERS to get properties into an array, then follow with CREATEOBJECT('Empty'), then iterate the array and use ADDPROPERTY() to build up the new object. But, I would be really tempted to use SCATTER twice instead. Why the reluctance?

>and after some operations I'd like to compare these objects.
>
>The function COMPOBJ doesn't work for me because if any property value is .NULL.
>it returns .f.

I just tried that in VFP 8 and it did not return false. Are you sure? I used this simple test:

CREATE CURSOR temp (fld1 C(10) NULL, fld2 I)
INSERT INTO temp VALUES (null, 1)
SCATTER NAME o1
SCATTER NAME o2
? COMPOBJ(o1, o2) && returns .T. even with NULL

-- Randy