If you open or save a DMS (Document Management System) file in Word and receive:

Invalid Document ID

        OR

The document name or path is not valid. It may contain characters which are not part of the current language of the operating system. Try renaming the file or opening it with the language of the system set to the language used when it was created.

        THEN

Your DMS does not understand Unicode.

Use Regedt32 to create the following registry path:

HKEY_LOCAL_MACHINE\Software\Microsoft\ODMA32\ANSIonNT