dtSearch Corp., a supplier of enterprise, end-user, and developer text retrieval software, has announced Version 6.4 of its dtSearch product line. dtSearch products are designed to instantly search text across a desktop, network, Internet, or Intranet. dtSearch products also serve as tools to aid in publishing large document collections to Web sites or to CD/DVD, with instant text searching. Products include: dtSearch Desktop with Spider, for searching file types on a PC; dtSearch Network with Spider, for searching across a network; dtSearch Web with Spider, for publishing a large volume of searchable content to a Web site; dtSearch Publish, for publishing a searchable document collection to CD or DVD, or mirroring an existing Web site on CD or DVD; and dtSearch Text Retrieval Engine, for Win & .NET and for Linux, for developers to add dtSearch's built-in file format support and searching to Web-based and other applications.
In addition to "vertical" searching of pages linked from a URL, the Spider can now "horizontally" crawl sites linked to a URL. (In keeping with the broader reach of the dtSearch Spider, the new version also adds options to limit indexed data by file size, file number, time on a Web site, etc.) The Spider also now supports forms-based authentication. Along with the Spider enhancements, dtSearch Web adds new options to the set-up wizard's search form generation, such as date range control, automatic generation of field searching controls, and stylesheet-based search form and search results formatting. dtSearch Publish uses a version of dtSearch Web on its CD/DVDs, along with a mini HTTP server. The dtSearch Text Retrieval Engine, available in both Win & .NET and Linux versions, currently supports SQL, Delphi, Java, C++, C++.NET, C#, VB.NET, and ASP.NET. The new version adds a new native .NET sample application for indexing and searching any database accessible via ADO.NET. The new version also includes Java API enhancements.
In addition, the entire dtSearch product line now adds a positional scoring option to dtSearch's built-in relevancy ranking by hit term frequency, density, and rarity. The new positional scoring ranks documents higher when hits are near the top of a file, or otherwise clustered in a file. The scoring option works in connection with all existing indexed, unindexed, fielded, and full-text search features, including: fuzziness adjustable from 0 to 10, synonym/concept/thesaurus, Boolean, natural language, phrase, phonic, wildcard, proximity, stemming, numeric range, and user-defined variable term weighting. Pricing is $199 for dtSearch Desktop with Spider, from $800 for dtSearch Network with Spider, from $999 for dtSearch Web with Spider, and from $2,500 for dtSearch Publish. dtSearch offers royalty-based and royalty-free pricing options for the dtSearch Text Retrieval Engine for Win & .NET and Linux. Fully-functional evaluation versions of any product are available for download online.