Wcf Exception configuration to enable logging to file when troubleshooting Wcf issues.

WcfException.config

<system.diagnostics>
  <trace autoflush="true" />
  <sources>
    <source name="System.ServiceModel"
            switchValue="Information, ActivityTracing"
            propagateActivity="true">
      <listeners>
        <add name="sdt"
            type="System.Diagnostics.XmlWriterTraceListener"
            initializeData="c:logclient.svclog"  />
      </listeners>
    </source>
  </sources>
</system.diagnostics>