A Compression Component by Xceed Software Inc

.NET technology
- Works with .NET 1.1 and 2.0, ASP.NET 1.1 and 2.0, and Visual Studio 2003 and 2005
- 100% managed code written in C# (source code included in the Blueprint Edition)
- Superior object-oriented design created specifically for the .NET framework. Not a .NET interface over a recycled ActiveX component like some other manufacturers are trying to sell
- Seamless integration with the .NET base class libraries, with error handling exclusively through .NET exception classes
- Objects don't need to be explicitly disposed of
CLS compliant (Common Language Specification) with no unsafe blocks, for minimal permission requirements
- Works with .NET Isolated Storage for temporary files as needed
- Documentation fully integrated into Visual Studio .NET 2003, 2005 and VB.NET and C# Express Editions
- VB.NET and C# Samples include a WinZipTM-like zip application, a PKZIPTM-like console zip application, a streaming compression sample and a Windows Explorer-like application that allows you to work with files, folders and zip files interchangeably

Multi-talented capabilities
Built-in file transfer and filesystem capabilities. Because it's built on top of the Xceed FileSystem Core, a variety of additional file and folder manipulation capabilities are available, as is the complete functionality of Xceed FTP for .NET without any additional learning curve or effort.

Abstracts files and folders in Zip files, on FTP sites, in streams, in memory, etc., so that your code is written as if it is working with regular files or folders. When support is added for more archive types and locations (such files served through HTTP), there is no need to change your code in order to work with the new archive types or locations

It even optimizes operations so that you can perform feats such as speedily accessing files located in a Zip archive on a remote FTP server, while using astonishingly low bandwidth—something no other .NET component or group of components can accomplish

Major features
- Create new zip files or update existing zip files on disk, in memory, or on an FTP site
- Support for the Zip64 zip file format, eliminating the 4GB barrier and 16384 file limit
- Improved speed when dealing with a large number of files: 40%-80% for compression and 20%-30% for decompression
- Zip or unzip to and from disks, FTP sites, memory or isolated storage. When unzipping one or more files from a Zip file located on an FTP site, Xceed Zip for .NET will download only the necessary portions of the Zip file required in order to unzip the files, for greatly improved speed and minimal bandwidth use
- Read, write and update zip files split into multiple parts
- Read, write and update zip files that span multiple disks
- Create powerful fully customized self-extracting zip files
- Supports the new Deflate64TM compression method, for improved compression
- List contents of a zip file with complete file specifications. If the Zip file is located on an FTP site, Xceed Zip for .NET will download only the central directory portion of the remote Zip file, for greatly improved speed and minimal bandwidth use
- Compress or decompress any .NET stream
- Compress and decompress byte arrays completely in memory
- Copy, move, rename, delete files and folders in a zip file, on disk, in memory, on an FTP site, in Zip files on an FTP site, or in isolated storage
- Change attributes of files and folders on disk
- Copy, move, rename, delete and change attributes of files and folders on disk, in a Zip file, on an FTP site, etc.
- Zip password encryption (128 to 256-bit AES encryption coming soon - currently available in our unmanaged, .NET-compatible Xceed Zip Compression Library)
- One-line shortcut classes for basic zip file and compression operations
- Fully extensible classes so you can customize the library's functionality as needed
- Information-rich status report events with percentages, byte and file counts
- Programmable filter system to limit processing to specific files or folders, with built-in filters for file attribute, size, date, timestamp and filenames. Create your own custom filters as needed.