This high-performance Zip and Unzip data compression library lets your applications create and manipulate 100% PKZip compatible Zip files as well as compress/uncompress data directly in memory. It's designed to offer the ultimate in flexibility while being the easiest to use product of its kind.  Includes a state-of-the-art, fully documented ActiveX COM component that provides the industry's most complete feature set and the fastest multi-threaded compression engine.

With versions for 32-bit and 64-bit processors, this ActiveX component supports both single-threaded (STA) and multi-threaded (MTA) apartment models and has very low memory requirements. It is perfectly suited for use in environments running multiple zip/unzip operations simultaneously, can run in the background and can be dynamically instantiated for formless use.

Xceed Zip has always been known for being superbly designed and easy to use. The latest version continues this tradition, and also offers categorized properties, built-in constants and enumerations, context-sensitive F1-help, optional parameters and built-in help strings. The newest version also features performance enhancements.

With Xceed Zip, applications receive detailed information about the current compression activity, have full control over each file's information as it is being zipped and unzipped and can be consulted by the library when choices need to be made. There are twenty intelligently thought-out events that are triggered by component so your application is never in the dark and can manipulate the library in real-time.

Xceed Zip is 100% compatible with the latest PKZip 4.5 zip file format as well as the traditional 2.04g format, which is the most popular data compression format for Windows, and has wide acceptance on many other platforms as well. Files that are compressed using the latest Zip format can be extracted using any of today's popular unzipping applications.

Xceed Zip includes comprehensive online documentation that is packed with examples to help you accomplish your tasks effortlessly. Fully commented sample applications are included for many languages - with more are being added continuously. You can copy examples from the help file or samples, paste them into your project, and create Zip files without writing a single line of code!

Xceed Zip includes complete sample applications and includes the multi-threaded ActiveX component, a DLL interface and an excellent 16-bit support package. It works with VB, VC++, Delphi, C++Builder, Visual FoxPro, ASP, VB Script, VB.NET, C# and most any other 32-bit Windows development environments.

The product is available through a subscription that delivers much more than just a perpetual license for versions received during the subscription. You also get a year of great services: expert priority support and access to new versions, new features, and bug fixes, as well as any new products added to the purchased suite during the subscription. Additional years can be added at a discounted price at the time of purchase or before the subscription expires; a new subscription is required after it has expired.

All Xceed components and libraries can be tried out with a fully functional 45-day trial and come with a 60-day money-back guarantee.

For nearly 20 years, Xceed has been creating top-of-the-line WPF, .NET, Silverlight, and COM software components. Our current product line has over 100 professional components, which are used by more than 100,000 professional developers worldwide, including by Microsoft in many applications such as Visual Studio Team System 2010, Microsoft Office, Windows Home Server.