I can open aula01.htm in internetexplorer.application

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lnLoadTimeout = 60 && seconds
loIE = Createobject("internetexplorer.application")
loIE.Visible = .T.
loIE.Navigate(SYS(5)+ CURDIR()+"aulas\"+ "aula01.htm")
* Wait for load to complete
lnSeconds = SECONDS()
DO WHILE (loIE.Busy OR loIE.ReadyState <> 4) ;
AND (SECONDS() - lnSeconds) < lnLoadTimeout
DOEVENTS
ENDDO
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But the same file in webbrowser does not open

"member document does not evaluate to an object"


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&& Load HTML into Web Browser Control
Thisform.olecontrol1.object.Document.Open()
Thisform.olecontrol1.object.Document.Write(loIE.Navigate(SYS(5)+ CURDIR()+"aulas\"+ "aula01.htm"))
Thisform.olecontrol1.object.Document.Close()
&& Wait for load completion
lnStartSeconds = SECONDS()
DO WHILE Thisform.olecontrol1.object.ReadyState <> 4 ;
AND (SECONDS()-lnStartSeconds <= lnLoadTimeout )
DOEVENTS
ENDDO