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For information about the differences between Microsoft Outlook Express and Microsoft Outlook e-mail clients, click the following article number to view the article in the Microsoft Knowledge Base:
257824 OL2000: Differences Between Outlook and Outlook Express
When you attempt to use Outlook Express to check the spelling of an e-mail message, the spelling checker may not work and you may receive the following error message:
An error occurred while the spelling was being checked.
This issue can occur if you are not using a Microsoft 32-bit spelling checker.
Outlook Express does not support 3rd-party office or word processing spelling checkers.
To resolve this issue, install or reinstall a program thatincludes a 32-bit spelling checker, such as Microsoft Works 4.5, Microsoft Office 7.0 for Windows 95 or Microsoft Office 97 programs: Microsoft Word, Microsoft Excel, and Microsoft PowerPoint or later versions.
For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
224176 Cannot Spell Check Messages in Outlook Express 5