Logging to Windows Event Log

<?xml version="1.0" encoding="utf-8"?>
<log4net>
   ...
   <appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
      <param name="LogName" value="MyLogName" />
      <param name="ApplicationName" value="MyApplicationName" />
      <layout type="log4net.Layout.PatternLayout">
         <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
      </layout>
   </appender>

   <root>
      <appender-ref ref="EventLogAppender" />
   ...