Xceed Real-Time Zip for .NET

NET technology

• 100% managed code written in C# (Complete source code available in the Blueprint Edition of Xceed Real-Time Zip for .NET).
• Object-oriented design created specifically for version 2.0 and up of the .NET Framework.
• Seamless integration with the .NET base class libraries.
• All error handling works through .NET exception classes.
• Objects don¿t need to be explicitly disposed of.
• CLS compliant (Common Language Specification).
• Does not use unsafe blocks for minimal permission requirements.
• Documentation fully integrated into Visual Studio
• VB.NET and C# sample applications.
• The .NET 4 build is compiled using the Client Profile.

Major Features

• Lets applications read and write fully standard Zip archives without resorting to any intermediate disk/memory storage or temporary files whatsoever. This means optimised performance ideal for high-demand server environments, Biztalk servers, diskless operations, I/O-intensive Web sites, or any situation where real-time streaming zip/unzip capabilities are needed, or where memory or disk space is at a premium.
• The product's main ZipWriter and ZipReader classes use any seekable or non-seekable Stream-based object as the target or source Zip archive, respectively, for complete flexibility and ¿on-the-fly¿ compression/decompression.
• Lightweight libraries.
• Creation of Zip archives begins as soon as data to compress has been received: no waiting for all of the files, or even for complete files. Doesn¿t need to know in advance the number or size of files.
• Zip archives can be immediately sent over a network or saved locally as soon as the write process has begun, and the remainder of the archive becomes available as it is compressed.
• Fast: Not needing to use temporary files when creating a Zip file means it's slightly faster than Xceed Zip for .NET when it comes to creating entirely new Zip files.
• Secure: Because no temporary files are used while writing a Zip file, there is less chance of unauthorized access or modification of files during the Zip creation process.
• Archived files are extracted and available instantly for further processing even if the component is still receiving the Zip archive.
• The size or number of files in a Zip archive has absolutely no impact on memory and disk-space requirements.
• Just a few methods and properties are needed to perform powerful Zip compression/extraction.
• Supports the BZip2, BWT, Deflate, Deflate64, and PPMd compression methods.
• AES encryption and decryption are supported for maximum WinZip compatibility. The AES encryption algorithm used by the component can now be set by the developer.
• The only library to provide WinZip 12 compatibility, supporting the LZMA algorithm for improved compression in certain situations. Note: Zip files using WinZip 12¿s special JPEG recompression feature are not supported.
• UTF-8 character encoding in headers for improved support of international characters in filenames and comments is provided.
• Events and properties to monitor and control the Zip writing/reading processes are also provided.
• Compatible with older zip tools.
• The ZipWriter can generate uncompressed zip files that the product's ZipReader can read, increasing flexibility (combines the Deflate format and no compression).