Johannes Leveling's BZoom project is an extension for Bigloo, a compiler and interpreter for the Scheme programming language. It's written as a thin layer over Index Data's ZOOM-C, supplying ZOOM classes to Bigloo applications.
BZoom is available for free download at http://pi7.fernuni-hagen.de/leveling/BZoom_v13.zip
It does not yet have its own web-site: some additional information is available, however, in the README file from the distribution.