Spell-check as You Type in Kentico CMS
Although Kentico CMS comes with built-in spell-checker, users often forget to check their spelling before publishing. In such cases, you can use the SpellCheckAsYouType (SCAYT) service provided by SpellChecker.net that checks your spelling and underlines the misspelled words. It smoothly integrates with FCKeditor used in Kentico CMS and it has a fully-functional free version.
Kentico customers receive 10% discount on the full version of SCAYT that comes with support for more languages and without banners. It can also be hosted on your own server.
Learn how to enable the free version of SCAYT in Kentico
CMS:
http://devnet.kentico.com/Knowledge-Base/Content-Management/SCAYT-for-WYSIWYG-editor.aspx
Get the full version with 10% discount for Kentico customers