- jbj: wireup zlib/zip fromats. don't set format specific parameters w popt cb.
- jbj: wireup zlib/zip fromats. don't set format specific parameters w popt cb.

devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5