Zip Component, Email Component, Encryption Component ActiveX Control for Zip Compression .NET Components for ASP.NET
ActiveX and .NET Components for Zip Compression, Encryption, Email, XML, S/MIME, HTML Email, Character Encoding, Digital Certificates, FTP, and more ASP Email ActiveX Component

  

  

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FAQ

Minimum Requirements
Internet Explorer 4.01
(for Windows 95:
Windows Socket 2)

All Chilkat Components are licensed royalty free

Zip Compression Component

30-day evaluation license

Documentation • Purchase

New Features in V8.0
*Registered users should request a new unlock code before upgrading.

  • Abort Capability Using events, Version 8.0 has the ability to abort any zip or unzip operation while in progress.
  • Events Version 8.0 now includes a robust set of events that allow you to closely monitor the progress while zipping and unzipping.

New Features in V7.0

  • AES Encryption Encrypt your data using up to 256-bit AES encryption. Also supports Blowfish and Twofish encryption algorithms.
  • Create Self-Extracting ZIPs Works with the ChilkatZip Self-Extractor utility to access ZIPs embedded in EXEs created by that utility.
  • Embed ZIPs into EXEs Embed ZIP files directly into EXEs, and access them from your program. The ZIP is embedded as a named resource, and any number of ZIPs can be embedded in a single EXE.
  • Set Exclusions Exclude files matching wildcarded filenames, such as "*.log".
  • Unzip Newer Unzips files based on last-modification time.

Existing Features

  • Create New ZIPs Create new ZIPs from existing files, memory data, or other existing ZIPs.
  • Add Files to ZIPs Adds files to existing ZIPs.
  • Delete Files in ZIPs Remove specific files within a ZIP.
  • ZIP Entire Directories Recursively descend directories to ZIP everything.
  • Merge ZIPs Merge any number of ZIPs into one ZIP.
  • Unzip Unzip and auto-create directories as needed.
  • Unzip Matching Unzip only files matching a wildcarded pattern.
  • Access to Compressed Data Directly access the data in its compressed format.
  • Memory-to-ZIP Conversion and Back Allows direct access to data within files in the ZIP.
  • Memory Compression/Decompression Use ZIP compression without ever writing files.
  • Full Control Over Comments Add comments to the ZIP, or to individual files within the ZIP.
  • Progress Indicators Makes it easy to view the progress of zip and unzip operations.
  • Works on Temporary ZIPs The ZIP is never touched until WriteZip is called.
  • Get ZIP Directory as XML Great for reporting the contents of a ZIP.
  • Inflate to String Makes it easy to access text data.
  • Append/Replace Data In-Place Modify the contents of a file within the ZIP in-place.

Chilkat Zip is an easy to use, high-performance ActiveX control that provides your applications with the ability to create and manipulate Zip archives.  

It provides easy access to the decompressed contents of the individual files stored within a Zip archive.  It also allows you to easily compress directly from memory buffers or strings, as well as add multiple files with wildcarding and recursing directories.

All Chilkat component licenses allow for royalty-free distribution of the control with your application.

  • Royalty free licensing. (All Chilkat components are royalty free)
  • Search for a file within the Zip using a wildcarded string.
  • Progress monitoring events allow for zip and unzip operations to be monitored in real time. (See the example programs).
  • Get the Zip archive's directory in XML format.
  • Unzip a file into a specific directory, regardless of the directory information stored within the Zip archive.
  • Chilkat's Streaming Technology is used to allow any size file to be compressed or decompressed in a constant memory footprint. Even files that are Gigabytes in size can be compressed/decompressed.
  • Extract individual files, or files matching a pattern.
  • New property for specifying the temporary directory used when unzipping.
  • High-performance C++ ActiveX written with ATL 3.0.
  • Version property to make it easy for applications to see which version is installed.
  • Supports Active Server Pages, Visual Basic, Visual C++, Delphi, C++ Builder, and all languages that use ActiveX controls.
  • Fast compression with low memory usage. Includes optimized Pentium assembly code for high-performance.
  • C++ wrapper library for easy access to automation-compatible types required by ActiveX control.
  • Completely compatible with the existing PKZip 2.04g format.
  • Zip files created by this component can be used by any existing application that read Zip files.
  • Unzip directly to memory or a string.
  • Add, delete, or modify entries within a Zip file.
  • Add files to a Zip using wildcarding and recursing directory trees.
  • Complete control over the compression algorithm.
  • Create new Zip entries directly from memory.
  • Easily step through each file in the Zip and access the file attributes, compression ratios, etc.
  • Extract from a Zip to the filesystem.
  • Online documentation and excellent support.


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Components for Microsoft Windows 7, Vista, XP, 2000, 2003 Server, and Windows 95/98/NT4.