Unfortunately, the EventListener class does not talk cross-process, or even across AppDomains. That wasn't the purpose of the EventListener class.
Instead, I recommend you use the upcoming (and most likely will be the official supported ETW "reader" library from MSFT) --
http://www.nuget.org/packages/Microsoft.Diagnostics.Tracing.TraceEvent
While you're at it, check out -- http://oculus.codeplex.com/ (this is very similar to TraceEvent, but has a bunch of different generate code special windows events)