Outlook Express: Error Message

A user brought another interesting problem to my attention.  For E-mail, they used Outlook express on their Windows XP computer with Office 97 installed.  Whenever they click on the spell check button from within Outlook Express, they receive the following error message.

"Error occurred while the spelling was being checked"

After searching on Google, I came across a quick solution that required downloading and installing a single dll file [CSAPI3T1.dll]. 

1. Download the dll file from the web page listed above.
2. Copy CSAPIeT1.dll to C:\Program Files\Common Files\Microsoft Shared\Proof.
3. Shutdown Outlook Express.
4. Start Outlook Express.

As soon as we restarted Outlook Express, spell checking was working fine.

-Chris