In tip 0883, I introduced the freeware Windows NT 4.0 Resource Kit Support Tools.
Microsoft has written a Knowledge Base article, Q232213 - How to Use the Dhcpcmd.exe Tool Included with Support Tools. I quote:
"Administrators can use the Dhcpcmd.exe tool to manage a Dynamic Host Configuration Protocol (DHCP) server from a command line, and is included in the Windows NT 4.0 Service Pack 4 Support Tools. This article describes the syntax of the Dhcpcmd.exe tool in detail."