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.
Note: VB4 does not fully support the ActiveX/COM standard, and therefore Xceed Zip v4.x-6.x's ActiveX control does not function with VB 4. In order to use Xceed Zip with VB4, you have two choices: Use the DLL API to make direct calls the Xceed Zip Compression Library v5.0 (events are not supported in VB4 because of the impossibility of setting callback functions), or use the Xceed Zip Compression Library v3.5's OCX, which is very easy to use, fully supports VB4 and provides most of the functionality of Xceed Zip v5.0. The differences between Xceed Zip v3.5 and v4.x / v5.0 are listed in the What's New section.
If you use the DLL API, there is nothing else to do to install Xceed Zip for use by VB4.
A sample application for using the DLL API in Visual Basic can be found in the Samples directory where you installed Xceed Zip.
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.