ArchiveLib -- compression, encryption and ZIP Archiving

ArchiveLib

Produce PKZIP compatible archives in C or C++ easily

Until now, your development choices for data compression and archiving in C++ or C applications (other languages too!) were severely limited. Professionals, don't be stymied any longer! ArchiveLib includes three fast, efficient compression/decompression engines -- one of which provides PKZip compatibility -- and architecture for addition of other compression methods.

Your applications can have robust, highly efficient data compression, decompression, encryption and archiving. Windows 95, Windows NT, Windows 3.1x, and DOS programmers can use the same fast, portable routines. ArchiveLib ships with most libraries pre-built and includes utilities to build production and debug versions of the Windows DLLs plus static link libraries for Windows and DOS. ArchiveLib also includes data compression, decompression, and archive management for files or objects in memory.

Features:

C++ class library with thin C shell for ease of use
Also supports Visual Basic and Delphi
Control source and destination (file, memory, port, etc.) of all data
Complete control over format of archives
Encryption is also compatible with PKZIP
Long filename support under Win32
Compress/Decompress to memory or file
Progress meters (spin and bar) included
Recurse subdirectories
DOS, Delphi, Visual Basic and MFC examples included

Three sets of compression and decompression engines, a general-purpose wildcard expansion and subdirectory recursion engine, the capability to use Windows list boxes seamlessly to input or output a list of files. Handy capabilities like progress monitors are included -- a spinner, message, bar graph. Greenleaf's ObjectGuard is one of a robust set of debugging tools; it can assert a message if a guarded object has a memory allocation problem or pointer error. Most functions return meaningful error codes

Quick, reliable, and efficient compression that works with all kinds of data. The Greenleaf compressor is a lossless, dictionary-based 5-level engine set that has been carefully crafted to exacting requirements by an expert in the field. ArchiveLib also includes a compressor / decompressor (deflate) engine that is compatible with PKZIP! A straight Copy engine set (for small, uncompressed files in an archive) rounds out the arsenal of data handling tools in ArchiveLib. Both compression engines offer multiple selection of compression parameters.