Spell Check Anywhere 

Spell check in any Windows Program. Spell check in Outlook, Word, MS Office, Write, WordPad, Notepad, Internet Explorer (IE), Yahoo! Email & Messenger, MSN Hotmail Email & Messenger, and in 1000s more applications. Downloadable.
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Aspose.Spell 

Aspose.Spell multilingual spell checking component that can enable you to check spelling in more than 20 languages, including Afrikaans(ZA), Catalan(ES), Spanish(ES) and Swedish(SE) etc.The last version Made Spell and other classes serializable.
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Grammar Slammer with Checkers 

English grammar + spelling checkers with help + reference that answers the questions the checkers raise. Complete reference integrated with checkers. Handy + Easy. Use as tutor, too. Windows 95 or higher.
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for Windows Help Designer/Winhelp 

Visagesoft for Windows® Help Designer is a stand alone and true WYSIWYG Windows help authoring tool. It provides all the basic features of a Help authoring software
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NotePro 

If you need to create or edit text files and want something with more options than the default Notepad/WordPad programs that come with Windows but don't need the power and complexity of a full-fledged word-processor, check out NotePro.
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STFWebPen 

STFWebPen is easy-to-use but robust HTML and script editor with:: FTP Client, CSS and DHTML Menu Wizards, Spelling checker, Image Mapper, strong tag support, preview in multiple browsers, syntax highlighting, MSWord docs import and more.
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