DHCP Server for Windows

DHCP Server assigns IP addresses to client computers. This is very often used in enterprise networks to reduce configuration efforts. All IP addresses of all computers are stored in a database that resides on a server machine.
This is a very simple and easy to use implementation of a DHCP Server for Windows based systems supporting all Windows operating systems from Windows 98 to Windows 7.
How To Install and Configure a DHCP Server in a Workgroup in Windows Server 2003

This step-by-step article describes how to configure a new Windows Server 2003-based Dynamic Host Configuration Protocol (DHCP) server on a stand-alone server to provide centralized management of IP addresses and other TCP/IP configuration settings for the client computers on a network..... http://support.microsoft.com/kb/323416