Propagate the infolog messages

I was wondering if anyone has tried this (AX 2012)

To propagate Infolog messages, edit the AX32.exe.config XML file to add listeners from the .NET System.Diagnostics namespace. One listener that you can add is the EventLogTraceListener. After you add this listener, all messages that are written to the Infolog are also written to the Windows Event Log.

I tried to set this up, but all I get is nothing or an AX crash, but no messages in the eventlog...

See http://msdn.microsoft.com/en-us/library/gg845722.aspx