DotLucene 1.9
Do you need a powerful open-source search engine for your .NET application?
Very good performance
Ranked search results
Search query highlighting in results
Searches structured and unstructured data
Metadata searching (query by date, search custom fields...)
Index size approximately 30% of the indexed text
Can store also full indexed documents
Pure managed .NET in a single assembly
Very friendly licensing (Apache Software License 2.0)
Localizable (support for Brazilian, Czech, Chinese, Dutch, English, French, German, Japanese, Korean and Russian included in DotLucene National Language Support Pack)
Extensible (source code included)
DotLucene is a port of Jakarta Lucene to .NET (C#) maintained by George Aroush
Index is compatible with the Java version (Lucene)
News
New Read my new article on Office documents indexing (CodeProject) - votes are welcome if you like it (June 16, 2005)
What's new in DotLucene 1.9 RC1 (May 26, 2005)
What's new in DotLucene 1.4.3 (Feb 22, 2005)
Recommended Reading
API documentation(MSDN style)
Query syntax
Microsoft Office documents parsing
Running DotLucene on a shared hosting
See DotLucene in Action (Online Search Application)