From the developer: "Add high-speed, reliable, zip and unzip operation to any Windows or web-based application. WinZip, PkZip, and UNIX gzip compatible. Create self-extracting zip files. Also, this product is a powerful data encryption/decryption utility, enabling military-grade AES data encryption. This product is an ActiveX control designed to be used by software developers in any COM compliant development environment such as Visual Basic, Visual C++, Delphi, ASP, etc. It is NOT an end user application."