LeeSanderson 

NAnt is a build tool that builds .NET projects and solutions (based on the original Ant for Java). It is also an XML-based "scripting" language where you order "tasks" to do the build work.

CHESS is a open source tool created by Microsoft Research for systematic and disciplined testing of concurrent programs.

Cross-platform .NET standard P/Invoke wrapper for wkhtmltopdf library that uses Webkit engine (approximately equivalent to Safari 5.0.6) to convert HTML pages to PDF and Images.