it works indeed. (on my Windows 10).
took the download from the link IOhannes gave earlier:
https://github.com/pure-data/deken/tree/w32-unzip
put from the content only 'deken-plugin.tcl' in: %AppData%\Pd\deken-plugin\ .
works beautiful clean.
debatable wish: is it possible to automatically get rid of the zip-archive, which stays also in the same folder, as a kind of artifact.
thanks rolf