This plugin extends EDD Software Licensing by Windows Security IDs provides more robust support for Windows client software by using the Windows user’s security id to identify a license and, if appropriate, restrict the number of activations per license.
Though only one security id might be licensed, a user can be move it from account to account by changing the active Security Id for a license by using a feature on your web provided by this plugin.
This plugin is a replacement for the Easy Digital Downloads plugin updater for WordPress multi-sites.
Easy Digital Downloads and the Software Licensing plugin works just fine when used in single site configuration. However the update features available through the EDD SL plugin updater probably will not work in a multi-site configuration.