just got one legacy app with log4net early version bundled, something wrong and there is no way to see the log . here is the trick
if you use refelctor, you can see the assermbly attribute. [assembly: DOMConfigurator(ConfigFileExtension="log4net", Watch=true)]
then for the config file, should you yourexe.exe.log4net, you can tell from the logic
one sample config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
</configSections>
<log4net>
<appender name="FileAppender" type="log4net.Appender.FileAppender">
<file value="logfile.txt" />
<appendToFile value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date: %-5level – %message%newline" />
</layout>
</appender>
<root>
<level value="INFO" />
<appender-ref ref="FileAppender" />
</root>
</log4net>
</configuration>
