I use this in FPD26->VFP8:

#IF "VISUAL FOXPRO 08" $ UPPER(VERSION())
	SET ENGINEBEHAVIOR 70 
	SET TABLEVALIDATE TO 0   
#ENDIF

>Hi All,
>i am using this code below for to use "set enginbehavior 70" command in my start.prg if myapp.exe compiled vfp8. it runs without error . is this true for detection ?
>
>TIA
>
>

>  lcversion=TRANSFORM(VERSION(4))
>	      lcSearch='8'
>	      lcStatus=ATC(lcSearch,lcVersion)
>		IF  lcStatus # 0
>			SET ENGINEBEHAVIOR 70 &&80 &&vfp7 compatibility
>	WAIT WINDOW "EngineBehavior 70 Using...." TIMEOUT 0.05
>	    ENDIF
>