FZip is a cute little Actionscript 3 class library,that enables you to load standard ZIP archives and extract contained files while the archive is still loading,modifying,and creating standard ZIP archives. It parses ZIP archives progressively, allowing access to contained files while the archive is loading.
FZip is released under OSI approved zlib/libpng license.
The newest FZip’s version is 1.0.055 (12/21/2007).
Here is the Demo(Not avoid now…) about FZip and you can download this source from here