>Fabio ran a series of tests, and one of a gazillion tests failed. According to Fabio's logic that makes the product unusable. Which is the same opinon he has of all the products I have seen him commenting on.

I have found a much simpler rel-life error with all zlib based zippers - large files. There seems to be a limitation in the buffer sizes somewhere, so your largest zipped string won't exceed 19M or thereabouts, regardless of how large it actually needs to be.