This is a SAX for .NET parser implementation based on the popular Expat XML parser.
Expat is one of the fastest non-validating XML parsers, with very good conformance. This has been confirmed by running the Conformance demo application included with SAX for .NET 2.0 against the XML-Test-Suite.
It supports not only the core SAX2 API, but most extensions as well, including support for incremental parsing.
You can download the latest SAXExpat.NET package from the Files section. Some versions (e.g. 1.5 and later) are included with the corresponding SAX for.NET package.
This library is currently maintained by Karl Waclawek.