Peter,

You'd also have to remove the DataEnvironment records out of the SCX you are trying to convert to a VCX.

>>Not exactly subclassing :), but you can easily convert VCX to SCX or vice versa by opening it as DBF and changing the value of UNIQUEID field in the first record from Screen to Class (or back).
>
>Nick , I've tried your interesting idea, but it doesn't work. A VCX is a class LIBRARY, whereas a form class is something IN a class library. Did I miss something?