This high-performance Zip/Unzip compression ActiveX component has the industry's richest feature set and uses the fastest multi-threaded compression engine available. Its clear design and impeccable documentation will ensure your compression needs are implemented quickly and easily. Supports all languages through ActiveX or DLL interfaces. Now includes WinZip 9.0-compatible AES strong encryption.
Zlib is a free general-purpose data-compression library. Integrity checks performed with the CRC-32 or the ADLER 32 checksums. In-memory operations use the zlib compressed data format (RFC 1950). Deflate (RFC 1951) is used for its compression algorithm. Typical compression ratios are between 2:1 and 5:1. The gzip format, RFC 1952, is supported for compressing files on a file system. Lacks support for PKZip 4.5, BZip2, and Deflate64.
