Try each of the following steps in order until the error is resolved:
  1. Verify that 2003 Microsoft Office Web Components are installed on the workstation.
  2. Give the user local administrative rights.
  3. Run the REREGISTER.EXE utility.
  4. Register the msolap80.dll found in C:\Program Files\Common Files\System\Ole DB.
  5. Uninstall and reinstall Microsoft Office.
  6. Uninstall and reinstall the workstation.