Illation LLC (http://illation.com) paid Clozure Associates to make RDNZL run on CCL.
I've put a zip file of our port at http://www.clozure.com/~rme/rdnzl-0.13.3-clozure.zip.
It contains the patched sources, an updated version of rdnzl.dll, and a file called rdnzl-notes.txt, which explain how to run the examples with CCL. There's also a file word.lisp that contains an sketchy example of manipulating Word documents via the "Microsoft.Office.Interop.Word" interface.
I've been sitting on this for a long time, and I want to make it available to interested parties. I hope it's useful for someone.