From Programs select Administrative Tools. Now select Configure your Server.
Select the first option if you have one server in your network. Select the second if you have more than one server in your network then click next.
From the menu at the left,choose the services that you want to run on this server. If you want to install Active Directory then click Active Directory. On the right hand side scroll down the window,you will find Start the Active Directory Wizard. Just click Start link.
Now click next. Select Domain Controller for a New Domain then click next. Select Create a New Domain Tree then click next. Select Create a New Forest of Domain Trees then click next. Type the full DNS name for New Domain then click next. Type Domain NetBios name then click next. Again click next. Again click next. Then it will give a message Install and Configure a DNS Server on this Computer,click O.K. Select Yes,Install and Configure DNS then click next. Select Permissions compatible with Pre-Windows 2000 Servers then click next. Type the Administrator password then click next. Again click next. Then it will Configure Active Directory like this.
At last click Finish. Then click restart now button. You completed installation of Active Directory. Now double click My Network Places. Then double click Entire Network. Then click View the Entire Contents. You will observe your Active Directory like this.
Now you finished windows 2000 server configuration.