note thatguy [http://search.cpan.org/doc/PMQS/Compress-Zlib-1.14/Zlib.pm|Compress::Zlib] and [http://search.cpan.org/doc/RWMJ/IO-Filter-0.01/lib/IO/Filter.pm|IO::Filter] will do compression/decompression but are not (as [stefp] points out) perl only modules and it looks to me like everything invloving zip or compress on cpan uses Compress::Zlib (PerlIO::gzip, MIME::Decoder::Gzip64, IO::Filter::gunzip, Archive::Zip)<p>here is the [http://www.ietf.org/rfc/rfc1952.txt|rfc on the gzip spec] if you feel like writing a non Compress::Zlib module.<br>-p 118361 118361