a set of ASP.NET controls to provide search functionality at your website
UltimateSearch is a set of ASP.NET controls to provide search functionality at your website.

Built-in Search Engine - Add search to your website quickly and easily.

No Limitations - Index unlimited number of documents in unlimited number of internal and external websites with impressive Benchmark results.

No Coding Required - No need to write a single line of code on either server-side or client-side.

No Database Required - Index is serialized in binary files, and partially cached in memory for fast access.

No Indexing Service - Search engine is completely Independent of Microsoft Indexing Service.

Extensive Document Support - Both Static and dynamic pages as well as other document formats. ASPX, ASP, HTML, PDF, DOC, XLS, PPT, RTF, TXT, and many more.

Built-in Spell Checker - Did you mean: suggestions for misspelled words.

Advanced Search Types - Provide advanced search options such as all words, any word, exact phrase, and partial match.

Auto Scan Directories - Automatically scan directories under your application to crawl and index documents.

Auto Suggestions - Display suggested search terms as the user types in the Box.

Auto Reindex - Reindex your website either manually or automatically.

Filter Results - Filter search results by category and file type.

Frames Support - Place the search textbox in one Frame and display the search results in another frame. you can free download UltimateSearch 3.6 now.