I found this info on the Subject, but it doesn't specify what the data type of the custom option should be:
Microsoft DHCP Server does not have default support for option 82 as it has for other standard options. Using DHCP Server Management console (dhcpmgmt.msc) -> ->
Right Click -> Set Predefined Options..., you can add option 82 as a customized option for DHCP Server. Thereon, on the DHCP Client you can use DhcpRequestParams API to retrieve the options for your further use.
What I ultimately want to do is use the Win2k3 server to pull the info from the option 82 command I've enabled on my switches. Hardware used: Cisco 3750 switches. thanks in advance.