Artificially Intelligent Spell Checker component for the .NET framework. Supports both ASP.NET and Windows.Forms within the same assembly.
Includes Spell-As-You-Type support, custom dialogs for both desktop and web, and the best suggestion algorithm available - which can rank suggestions by the distance of the mismatched letters on the keyboard, and the likeliness of them being a mistype.
Includes English, German, French, Spanish and Italian dictionaries, with full support for new languages. Supports Linux using the Mono runtime. Royalty free starting from $199.