Xceed Zip Compression Library Documentation
Installation instructions for Visual FoxPro 5.0
Installing > Installation instructions for Visual FoxPro 5.0

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 to your VFP 5.0 and 6.0 projects. To do this, perform the following steps:

If the entry for Xceed Zip does not appear in the list of controls:

Special note for Visual FoxPro 5.0 and 6.0: Xceed Zip events will be triggered only if you set "Application.AutoYield = .F." Place this code in the section of your main program where you set up your environment. If you only have a single form in your application that uses Xceed Zip, place "Application.AutoYield = .F." in the forms load method, and set it back to the default in the forms destroy method. 

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.