Karamasoft UltimateSearch - ASP.NET Search Engine
Search unlimited number of websites and web pages. Internal and external links. Static and dynamic pages. Search content in files or database. Hit highlighting. Stemming and synonyms. Extensive document support for ASPX, ASP, PHP, HTML, TXT, PDF, DOC, XLS, PPT, RTF, and so on. Auto scan directories, crawl pages by following links in each page, or retrieve URLs from an XML file. Reindex automatically or manually. Advanced search types such as All, Any, Exact Phrase, and Partial Match. Score based on URL, title, keyword, and so on. Auto-complete search terms with suggestions in a dropdown. Built-in spell checker for "Did you mean?" suggestions.