From the developer: "BigSpeed Zip DLL lets you add zipping and unzipping capabilities to any application. The ZIP engine is written in fast, highly-optimized assembler code, so it can perform at speeds up to 200% faster than other ZIP libraries. The API is simple to use and can be called from any programming language that supports DLLs. Examples are included that illustrate how to use the DLL with Delphi, Visual C++, Visual Basic, and Visual FoxPro."