Zip-Ada is an Ada library for .zip archives. Its sources are unconditionally portable. Input and output can be any stream (such as a file or buffer) for archive creation as well as data extraction. It is task safe and endian-neutral.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
Support was added for Zip archives appended to other files, like a self-extracting archive with Zip-Ada code in the executable that unpacks the contents.
A new package, Zip.Compress.Deflate, has been added, with an initial (weak but straightforward) compression technique for the Deflate format. Now Deflate is implemented for both compression and decompression, which could also lead to a version of the ZLib library fully in Ada.