NetBpm is a .Net Port of JBpm1. NetBpm is an open source platform for building, executing and managing workflows. It is very simple to use and integrate in other .Net applications.
As quoted from the website, it features
- 100% .Net and browser hosted
- 100% Open Source
- works on Microsoft .Net and Mono
- Human-Oriented Collaborative Features
- Powerful Process Automation with Flexibility
- Support for Business Activity Monitoring