>>The answer exist:
>>escalade to a VC++ debugger
>
>I'm having a different problem with the debugger. If I run application, it works fine. But if I try to use debugger, and try to resume after stop, it gives me an error message: command can not be issued within transaction (REQUERY()). Why it is working without debugger? And how can I debug then?
>
>Thanks.

Hard!

Try ( not tested )

* STEPSTATUS=SET("step") return .F. ( a old bug )
SYS(2030,0)
 requery()
SYS(2030,1)
IF WEXIST("Trace")	&& 
	SET STEP ON
ENDIF