You only need to distribute the XCEEDZIP.DLL file with your applications in order for Xceed Zip Compression Library to work. If you are creating self-extracting zip files with the Self-Extractor Module, you'll also need to distribute the XCDSFX16.BIN,  XCDSFX32*.BIN, or XCDSFXBZ*.BIN file, depending on which one your application uses. You may not distribute any other of the library's files

It is highly recommended to place the XCEEDZIP.DLL file in the Windows System folder, with an application that does version checking, so that an already existing version of the file is not overwritten by an older version. Xceed Software will ensure that as long as the file keeps the XCEEDZIP.DLL name, it will always be backwards compatible with older versions. So, for example, applications compiled to work with Xceed Zip v4.0 will work with the v4.1 DLL, the v4.2 DLL and the v5.0 DLL, and will work with future versions of this file as well.

The XCEEDZIP.DLL file is fully self-contained, which means that target machines do not need any other files (such as the MFC40.DLL or MSVCRT40.DLL for example) in order for the XCEEDZIP.DLL to register and work on the machine. The early releases of Windows 95 (up to OSR1) require that you install the DCOM update or Internet Explorer v4.0, so that you can use apartment threaded components.

Only registered users can deploy applications that use Xceed Zip Compression Library.

The License method must be called to license the library for runtime use. This applies to both registered users as well as users of a time-limited free trial license.