SRE (Simple Rule Engine)

SRE (Simple Rule Engine) is a lightweight forward chaining inference rule engine for .NET. Its 'simple' because of the simplicity in writing and understanding the rules written in XML, but this 'simple' engine can solve complex problems.
Category	Rule Engines
License	GNU Library or Lesser General Public License (LGPL)
HomePage	http://sourceforge.net/projects/sdsre/