LogThis C# logging framework is a drop-in logging tool module for .Net applications. Supports: Multiple custom profiles; log file naming by day, week, month; max log file size; Windows event log. Simple out of the box, intelligent presets.
This is an excellent drop-in logging class. I needed a logger that was simple and easy to understand, for use on a project I'm helping get through a crunch time, and this was just what I needed.