Hi Tom,

on my test (VFP6/7/8), RETURN .F. stop form loading.

It is documented on Help:
Load Event
...
To prevent a form from being created, return false (.F.) from the Load event; the Destroy ( my add: and Unload ) event(s) will not be executed.

PUBLIC o
o = CREATEOBJECT('_Form')
=VARTYPE(m.o)='O' AND o.Show()

DEFINE CLASS _Form AS Form
	allowOutput = .F.
	AutoCenter = .T.
	Height = 140
	Width = 280

	ADD OBJECT eb1 AS Editbox WITH ;
	  Top = 5, ;
	  Left = 10, ;
	  Height = 21, ;
	  ScrollBars = 0,;
	  AddLineFeeds=.F.

	ADD OBJECT eb2 AS Editbox WITH ;
	  Top = 45, ;
	  Left = 10, ;
	  Height = 42, ;
	  ScrollBars = 0,;
	  AddLineFeeds=.F.

	 PROCEDURE Load
	   RETURN .F.
	 ENDPROC
ENDDEFINE

Fabio