Then install it in WordPress

  1. Install and activate the free Knowco US Map plugin first, if the site does not have it yet (download it here). Pro adds to it and needs it.
  2. In WordPress, go to Plugins → Add New Plugin and click Upload Plugin at the top of the page.
  3. Choose the knowco-us-map-pro.zip file you downloaded, as it is — don't unzip it. Click Install Now, then Activate Plugin.
  4. Go to US Map → License, paste the same key and click Activate.

That is the only manual install. While your license is active, new versions arrive on WordPress's own Updates screen like any other plugin. You only need this page again to set up another site.

Got a folder instead of a .zip on a Mac? Safari unzips downloads on its own, and WordPress needs the zip itself. In Safari, open Settings → General, untick Open “safe” files after downloading and download again — or use another browser.

If the download doesn't start

Your key is checked by our own update server, the same one WordPress uses for Pro updates, and is not saved in your browser.