PowerZip's Zip file support uses a (modified version of) ZipArchive Library by Artpol Software.

PowerZip uses encryption components licensed from Dr. Brian Gladman These are copyright (C) 2002, Dr. Brian Gladman.

PowerZip's Rar file support is implemented using unrar.dll by RarSoft.

PowerZip's Ace file support is implemented using unace.dll by e-merge GmbH

PowerZip uses Zlib compression library. The original Zlib sources are freely available from www.gzip.org/zlib/

Trident Software Pty Ltd would like to thank the companies and individuals above for making their components / libraries available for use in PowerZip.