UltimateSpell is a server control to add spell-checking functionality into your ASP.NET Web forms, Web services, and Windows Forms applications. No Coding Required: no need to write a single line of code on either server-side or client-side. Auto Find: drag-and-drop the control onto your page, and you're done. It automatically finds and spell-checks all editable controls. Lots of Dictionaries: currently 34 dictionaries available on our website. If not enough you can use your own dictionary as well.
Custom Dictionaries: add words to your custom dictionaries, and cache them as regular dictionaries. Spelling Options: lots of options to change the behavior of the spell-checking engine. AJAX Enabled: spell check very long text without compromising on speed. Sends small blocks of text to server using AJAX techniques without refreshing the page. Cache Dictionary: automatically caches dictionaries for fast interaction and data retrieval. Supports Windows Forms.