Yes. Destroy is just depended on the object reference counter, not on the Release. You can call that method by another way, not Release, and it will still work (for example, call it "CleanUp"). The functionality is in internals - in the way how VFP tracks all references to objects to know when object should be released - when this object is no longer used by anything (References Count = 0).

>Your solution works fine!
>
>I try this and seems work
>
>Release inside the object trigger the destroy events, outside don't trigger?
>
>
>*---------------------------------------------------
>acti screen
>clear
>
>public goBusiness
>goBusiness=createobject('Business')
>goBusiness.Release()
>
>*-- USO DE LA CLASE SESSION
>define class Business as Custom
>
> protected oData
>
> procedure Release
>
> release this
>
> endproc
>
> procedure init
>
> ? 'Business.init'
> this.oData=createobject('Data',this)
>
> endproc
>
> procedure destroy
>
> ? 'Business.destroy'
>
> endproc
>
>enddefine
>
>define class Data as Session
>
> protected oBusiness
>
> procedure Init
>
> lParameters toBusiness
>
> ? 'Data.init'
> this.oBusiness=toBusiness
>
> endproc
>
> procedure destroy
>
> ? 'Data.destroy'
>
> endproc
>
>enddefine