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Unzip downloads, create your own Zip files and password-protect (encrypt) confidential documents with PowerZip - an easy to use file compression & security program.
PowerZip Compression / Extraction Wizards make working with archives (such as Zip files) easy while providing an array of advanced features. The Wizards are quick to use because they have only a small number of steps; some steps can be switched of if not needed, others can be skipped to use default options. Pop-up tooltips explain the purpose of each button or control.
You can use PowerZip's 128-bit & 256-bit AES encryption to create password-protected Zip files to store confidential documents and files or send them through insecure channels, such as e-mail.
PowerZip supports two new compression methods (Deflate64 and BWT) to provide you with a higher level of compression than is normally available in Zip files. Standard Zip compression is also supported for compatibility with other Zip programs.
PowerZip adds itself to the Windows Explorer right-click menu, enabling you to perform common compression tasks (zipping, unzipping, encryption, splitting) directly from Windows Explorer / My Computer.
PowerZip supports 12 types of archives - PowerZip can create & unzip Zip, Cab, Tar, Bz2, Gz, Arj and Ha archives; PowerZip can also unzip Rar, Ace, Jar, Lzh and Z archives.
If you routinely perform compression tasks (such as daily backups), you can automate them by recording PowerZip Macro Files. Macro Files allow you to repeat the recorded compression (or extraction) task with a simple double-click; you can also run PowerZip Macro Files as part of an automated script.
If you need to distribute large files to friends, colleagues or customers who might not have a Zip program, PowerZip allows you to create a self-extracting archive that can be unzipped without requiring a compression program.
PowerZip 7 license comes with free technical support via e-mail and free upgrades.
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Xceed Streaming Compression Library is a high-performance "raw" compression library. It offers the ability to compress and decompress streaming data, buffers, strings or single files and supports multiple compressed data formats. Unlike Xceed Zip Compression Library, this ultra light library doesn't offer Zip file handling capabilities.
The library offers two well-known compression algorithms to suit your application's needs. For fast compression and decompression speeds, you can use the library's Deflate algorithm. It's the same one used in the industry standard zip file format and it achieves pretty good compression.
For maximum compression, the popular new BZip2 algorithm (Burrows-Wheeler Transform) is the way to go. We've found that BZip2 often achieves about 20% better compression on many popular file types such as database, picture, text and executable files. BZip2 is especially excellent at compressing XML data.
The library can compress and decompress GZip (.gz) and BZip2 (.bz2) files from Unix and Linux platforms, as well as handle Zlib, Info-Zip and Java-compatible data. Xceed Zip v3.x and v4.x memory-compressed (not Zip) data is also supported.
Like all Xceed components, this library is designed to be flexible yet extremely easy to use. In fact, it only takes one line of code to compress and decompress memory or files.
A single line of code can even be used to chain together multiple Xceed components like the Xceed Encryption Library and the Xceed Binary Encoding Library, so you can compress, encrypt and encode data into text just as easily.
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