We currentlt have two domain controllers. DC1 on server 2003 and Additional DC on server 2008. DC1 is also having roles of DHCP and DNS(preferrred) and DC2 has redundant secondary DNS. Now we would like to completely make it as 2008 demoting DC1 on serevr 2003. Can anybody give me clear steps to perform this. After demoting DC1 what necessary changes need to do for DNS and DHCP servers.