Today, I have search all over the web on “How to add a DNS Suffix Search List to a Windows DHCP server”, and the result…. Group Policy. Yes, the only way to add a DNS Suffix search list for Windows (e.g. XP and Vista) is through group policy. Click here to read on it. DHCP option 119 and DHCP option 135 both doesn’t work with Windows.

“Dynamic Host Configuration Protocol (DHCP). You cannot configure DHCP to send out a domain suffix search list. This is currently not supported by the Microsoft DHCP server.”