Installing LDAP Active Directory

• dcpromo

in Start >> Run Type above command, you are suppposed to have any server edition installed on PC, of Windows

Put Windows CD in the CD Drive if required, it will install LDAP Active Directory on your PC
You can add users, manage users etc....

A very good link for installing Active Directory on Windows server, from Administrative Tools >> Manage Server >> Add/ Remove a Role >> .... Install Domain Controller ...

Ref : http://lab.ac.uab.edu/vnet/cookbook/v2.1/node167.html