Abbrevia is a compression toolkit for Delphi and C++Builder.
It supports compressing and decompressing PKZIP, Microsoft CAB, tar, gzip, and
bzip2 archives, and can create self-extracting executables. On Windows it also
provides Delphi wrappers for the LZMA, Bzip2, and WavPack SDKs, and PPMd decompression.