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The schema of EventEntry was not updated using out-of-process

Topics: General, Using
Aug 12, 2015 at 7:26 PM
Hi guys,

I write a custom EventSource class and add a method for log as below:
[EventSource(Name = "MyCompany")]
public class MyCompanyEventSource : EventSource
[Event(6, Message = "test.", Keywords = Keywords.Perf,
            Level = EventLevel.Warning)]
        public void Test()
And I used the SemanticLogging-svc.exe -c to start the trace event service, and before execute this cmd I also config the SemanticLogging-svc.xml to
<eventSource name="MyCompany" level="LogAlways"/>
And then I start to call the Test() method. For the first time, the flatFileSink will record the correct level of the event as Warning. However, after I changed the Test() method's level in the attribute to Critical and call the Test() method, the flatFileSink will still record the level as Warning. It was totally wrong! I know it was the the schema of the EventEntry which is the OnNext methods parameter. But if I use in-process listener, the level could be able to updated to Critical which is correct.

So, why is the level still the old one if I use the out-of-process? Is that something issue with the ETW? It looks like there are some cache in the machine. And this cache could not be clear no matter stop and delete the Event Trace Session in Performance Monitor nor restart the computer. I really want to clear this cache but I did not know how to make it.

And I know that if I changed the Version in the Event Attribute or changed the EventSource Name to another, the level will be update for the out-of-process. But it's not a good way I think since we may forgot to change the Version.

So, could someone help me?
Dec 12, 2015 at 2:40 PM
This is being caused by the manifest files being cached. Please see for a resolution to your problem.