Installing the INSPIRE extension
- Visit the website download page, locate your release, and download: http://sourceforge.net/projects/geoserver/files/GeoServer/2025.1/extensions/geoserver-2025.1-inspire-plugin.zip - Verify that the version number in the filename (for example 2025.1 above) corresponds to the version of GeoServer you are running. 
- Extract the archive and copy the contents into the GeoSever - WEB-INF/libdirectory.
- Restart GeoServer. 
To verify that the extension was installed successfully, please see the next section on Using the INSPIRE extension.