log4net is a tool to help the programmer output log statements to a variety of output targets. In case of problems with an application, it is helpful to enable logging so that the problem can be located. With log4net it is possible to enable logging at runtime without modifying the application...
NLog is a logging platform for .NET with rich log routing and management capabilities. It can help you produce and manage high-quality logs for your application regardless of its size or complexity.
This package installs NLog.dll with includes core logging functionality.
For your main project also...
Event Tracing for Windows (ETW) is a powerful logging mechanism built into the Windows OS and is used extensively in Windows. You can also log ETW events yourself code using the System.Diagnostics.Tracing.EventSource class.
The TraceEvent library conains the classes needed to control ETW providers...
Application Insights Trace Listener is a custom TraceListener allowing you to send trace log messages to Application Insights. Application Insights will collect your logs from multiple sources and provide rich powerful search capabilities.