Compression and encryption algorithms

• Wide range of compression algorithms: ZLib, BZip and PPM with different compression levels
• Creates encrypted archives using strong encryption algorithms: Rijndael 128 and 256 bit version, Advanced Encryption Standard (AES) winner, DES Single and Tripple, Blowfish 256 bit, Twofish 128 and 256 bit, Square 128 bit, hash RipeMD-128 and RipeMD-256
• Fastest compression levels are extremely fast
• Good balanced compression levels provide both good compression rate and high speed
• Maximum compression levels provide much better compression rate than Zip, RAR and BZIP

• Special tuning for compression algorithms implementations
• One of the fastest Deflate implementations available today
• Transaction system optimizing a group of archive modifications

• Adds, moves, extracts, deletes, updates, tests, refreshes a group of files by a single operation
• Supports in-memory archives
• Compresses large files with low memory consumption
• Provides compression for files, buffers, streams and strings
• Repairs and opens corrupted archives
• Supports archives up to 2^63 bytes, compresses and decompresses files up to 2^63 bytes
• Creates multi-disk spanning archive
• Splits archive to multiple volumes

• 100% managed code (written in C#)
• Well-designed component interface
• Progress indication with possibility to cancel operation
• Lots of useful events such as OnOverwritePrompt, OnNeedPassword, OnProcessFileFailure, etc.

• Comprehensive help
• Lots of demos
• Easy-to-use interface provided by a single component
• Source code available