The WinSpellChecker provides the capability to check spelling as the end user types and will notify the end user of the results by displaying red squiggles under the misspelled words.
AsYouType SpellChecking
For words which aren’t included in a standard dictionary, the WinSpellChecker provides end users with the ability to add words to their own customized user dictionaries thorough the SpellCheckDialog.
Customizable UserDictionary
WinSpellChecker includes dictionaries for a number of languages including: French, Portuguese, German, Dutch, Spanish, and English (US and UK).  Switching between dictionaries can easily be accomplished at run time, to provide culture-specific spell checking for the end user.
Multi-Language Support
The WinSpellChecker can be hooked up to the.NET RichTextBox, Infragistics Editors, or Infragistics WinGrid without having to write a single line of code.  In instances where you want to provide spell checking capabilities to elements which do not have direct support, the WinSpellChecker can be used to check any string of text.
Multiple editors support