1 Tweak available for DtSearch, see below

DtSearch Engine Text Retrieval Engine lets developers quickly add dtSearch's proven, "industrial-strength" text search and retrieval to applications. The dtSearch Engine is in use in hundreds of commercial applications. See Case Studies & 3rd Party Solutions for over a hundred developer case studies. Typical uses of the dtSearch Engine include: publishing and searching database-driven Web sites, incorporation into information management applications, searching of technical documentation, incorporation into forensics applications, email filtering usage, and incorporation into a broad range of vertical-market applications (legal, medical, financial, recruiting and staffing, etc.). The dtSearch product line can instantly search terabytes of text across a desktop, network, Internet or Intranet site. dtSearch products also serve as tools for publishing, with instant text searching, large document collections to Web sites or CD/DVDs.