Microsoft small business knowledge base

Article ID: 943600 - Last Review: October 23, 2007 - Revision: 1.0


When you try to open a Microsoft Works 8 Word Processor document (.wps file) in Microsoft Office Word 2003, you may experience one of the following symptoms:
  • You receive the following error message:
    The specified module could not be found. WKLS31.dll.
  • Word 2003 may crash.
  • If you are using a Microsoft Windows 2000 Service Pack 4 (SP4)-based computer, you receive the following error message:
    The file appears to be corrupted.


These problems may occur if the following conditions are true:
  • You have the following programs installed on the computer:
    • Microsoft Office 2003
    • Microsoft Works 8
    • Microsoft Works 6-9 File Converter
  • You remove the Works 6-9 File Converter.
Note These problems may occur if you have the 2007 Microsoft Office system installed on the computer.


To resolve these problems, download and then reinstall the Works 6-9 File Converter. To do this, visit the following Microsoft Web site: (

  • Microsoft Works 8
  • Microsoft Office Professional 2007
  • Microsoft Office Professional Edition 2003
  • Microsoft Office Standard 2007
  • Microsoft Office Standard Edition 2003
  • Microsoft Office Word 2007
  • Microsoft Office Word 2003
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