参考
Dim app As New MSWord.Application
try
Dim doc = app.Documents.Open("d:\test.doc")
For Each shape As object In doc.InlineShapes
If shape.Type = MSWord.WdInlineShapeType.wdInlineShapePicture
system.threading.thread.sleep(50)
shape.ConvertToShape
End If
Next
doc.saved = True
app.visible = True
catch ex As exception
msgbox(ex.message)
app.Quit
finally
End try