Someone recommended I use AddObject but by mistake I used CreateObject() and it worked. I'll start from the beginning.

I need to use both a class in forms and by regular programming. The problem was that when using the programming method:
oProg=CreateObject("myobject")
oProg.dowhatever()

But for the screen:
thisform.dowhatever()
*
*
The problem was "oProg" versus "thisform" from within the screen.

Edward Pickman (many thanks) recommended using AddObject() within the form itself and that worked (except I used CreateObject by mistake which also worked).

I just put into the LOAD() method:
PUBLIC oCs
oCS =CREATEOBJECT("cs")

and this works fine.

Now throughout the form I can just use
oCS.myProperty or oCS.myMethod just as I do programmically.

Thanks to all for this discussion.
Gene