I have asp.net web site. I added reference of Microsoft.Practices.EnterpriseLibrary.Logging.dll
to the site.
in web.cofig file, I defined like below.
This worked for me, with EL 6.0 and not using Unity
Init Logger from web.config file, on Global.asax -> Application_Start
var configSource = ConfigurationSourceFactory.Create();
Logger.SetLogWriter(new LogWriterFactory(configSource).Create());
Use logger on MVC controller
Logger.Write("Hello", "General");