FWIW, generally, you should be able to skip the registry step (if someone's not comfortable applying a .reg file) by using Word
itself andturning on
Confirm Conversions on Open
in Word's Tools=>Options=>General and then opening a non .doc file.
That should read the converter folder content and do the update.
=========
Graham's web page actually includes instructions:
"Extract the CNV files to the folder \Program Files\Common
Files\Microsoft Shared\TextConv. Merge the registry patches with your
registry (right click the patch in Windows Explorer and select Merge).
Restart Word to make the filters available. With older operating
systems, it may be necessary to reboot."
(
http://www.gmayor.com/downloads.htm)