Yea, that's the way it works or rather doesn't work. The workaround is to redimention destination array to one item before ACOPY().

dimension az[1]
acopy(az,this.ax)

>Hi all,
>
>Is this always the case in VFP7 w/SP?
>

>ox=createobject('classname')
>ox.test()
>define class classname as session
>   dimension ax[1,2]
>   procedure test
>      dimension az[2,2]
>      acopy(az,this.ax) && error: subscript is outside of defined range!
>   endproc
>enddefine
>

>
>TIA.