http://www.dtsearch.com/PLF_desktop_2.html
$199

dtSearch Desktop with Spider provides instant searching of desktop-accessible files. Provides over two dozen indexed and unindexed text search options for all popular file types. Supports full-text as well as field searching in all supported file types. Has multiple relevancy-ranking and other search sorting options.

Features include:

- a scrolling word list, for instant feedback as you type in a search.
- a field button, showing all indexed document fields.
- a look-up word feature, detailing the effect of fuzzy, phonic, wildcard, stemming and thesaurus search options.
- a search history display.
- browse and customize thesaurus options.
- search reports, showing hits in retrieved documents, along with the requested amount of context.
- indexing of Outlook message stores, with automatic support for Office, HTML, PDF, XML, ZIP, etc., attachments, including all hit-highlighted display features. (Also supports Eudora.)
- clipboard options, file launching, and other tools for working with retrieved data.
- exporting of search results in various data formats, for easy - use with other programs.
- special forensic indexing and searching tools.


Reviews of dtSearch®

Covers all data sources ... powerful Web-based engines—eWEEK

Searches at blazing speeds--Computer Reseller News Test Center

Intuitive and austere ... a superb search tool--PC World

Very powerful ... a staggering number of ways to search--Windows Magazine

A powerful text mining engine ... effective because of the level of intelligence it displays--PC AI

An inspired choice ... intelligent searching ... lightning speed --it-news

Intuitive and austere ... a superb search tool--PC World

Finding a virtual needle in a digital haystack is now much easier--MS OfficePRO

The Ultimate Search Machine ... fast, easy and a pleasure to use--dataBASE d-ZINE

Blindingly fast - Computer Forensics: Incident Response Essentials

A powerful arsenal of search tools–The New York Times

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http://www.dtsearch.com
  
The dtSearch product line can instantly search gigabytes of text across a desktop, network, Internet or Intranet site.