Xceed Zip Compression Library

This high-performance Zip & Unzip data compression library lets your applications create and manipulate 100% PKZip compatible Zip files as well as compress/uncompress data directly in memory. Offers the ultimate flexibility and is 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.
This ActiveX component supports single-threaded (STA) and multi-threaded (MTA) apartment models and has very low memory requirements. 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, already known for being superbly designed and easy to use, now offers categorized properties, built-in constants and enumerations, context-sensitive F1-help, optional parameters and built-in help strings. 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. Xceed Zip is 100% compatible with the latest PKZip 4.5 zip file format as well as the traditional 2.04g format. Xceed Zip includes comprehensive online documentation with examples to help you accomplish your tasks effortlessly. Fully commented sample applications are included for many languages. You can copy examples from the help file or samples, paste them into your project, and create a Zip files without writing a single line of code! Xceed Zip includes complete sample applications, free expert support, 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, and most any other 32-bit Windows developm.