The script gets all licensed users accounts and creates reports of licenses usage by country. It exports 3 reports: "Summary License Report according Microsoft", "Consumed Licenses Report in the context of Countries" and combined report in HTML format, so you can easy mail it with Send-MailMessage cmdlet.

The script searches a dhcp lease by IP or MAC address on all dhcp servers in Active Directory using ThreadJob and converts it to reservation. If dhcp server has a failover partner, the script notifies partner server too. The script requires DHCP admin credentials to work.