Xceed Zip Compression Library Documentation
Installation instructions for C++ Builder 3.0
Installing > Installation instructions for C++ Builder 3.0

The Xceed Component Installer will copy all the necessary files into the library's installation folder (usually in \Program Files\Xceed Components\Bin\ActiveX) and register the XCEEDZIP.DLL ActiveX / COM component. The only thing left to do is to make the control available in your C++ Builder 3.0 environment by inserting the control into the toolbar. To do this, perform the following steps:

The components should now appear in the ActiveX tab of your component toolbar. 

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.