O seletor XPath deve começar com *, no entanto, você não pode usar * para filtrar campos, pois o Xpath 1.0 não possui o operador contains .
XPath 1.0 Limitations: Windows Event Log supports a subset of XPath 1.0. There are limitations to what functions work in the query. For instance, you can use the
position,Band, andtimedifffunctions within the query but other functions likestarts-withandcontainsare not currently supported.