KB164156 - XCLN: Err Msg: Spell Check Operation could not be Completed

SUMMARY

When spell checking a message within a Microsoft Exchange Windows client, the following error may be displayed

The spelling operation could not be completed. The spelling
checker could not be started. Some components are either missing
or incorrectly configured in your Win.ini file. See your
administrator.

This error is usually due to the Microsoft Exchange Client looking for spelling files in either an invalid directory or a location that you don't have permission to access. Confirm the following registry entries and Win.ini entries point to valid files stored in accessible locations.

For Windows NT and Windows 95 clients:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Proofing Tools
   \Spelling\1033\Normal

   Engine=C:\Program Files\Common Files\Microsoft Shared\PROOF\MSSP232.DLL

   Dictionary=C:\Program Files\Common Files\Microsoft Shared\PROOF\mssp2_en.lex

For Windows 3.x clients:

   [MS Proofing Tools]
   Custom Dict=C:\win31\msapps\proof\CUSTOM.DIC
   Spelling 1033,0=c:\win31\msapps\proof\msspell.dll,
      c:\win31\msapps\proof\mssp_am.lex
   Spelling (Mail) 1033,0=C:\WIN31\MSAPPS\PROOF\MSSPELL.DLL,
      C:\WIN31\MSAPPS\PROOF\MSSP_AM.LEX