Hi,
This forum provides support for documentation and interoperability questions on open specifications.
The Open Protocol Specifications can be found at: http://msdn2.microsoft.com/en-us/library/cc203350.aspx.
Since your post does not appear to be related to the Open Protocols Specifications documentation set, I suggest the following:
Network Infrastructure Servers
Discussion on DHCP, DNS, NPS, and RRAS
http://social.technet.microsoft.com/Forums/en-CA/winserverNIS/threads
Microsoft DHCP Team Blog
http://blogs.technet.com/teamdhcp/default.aspx
I would also suggest you consider searching these resources in case someone has already asked a similar question:
Microsoft TechNet
http://forums.microsoft.com/TechNet/default.aspx?SiteID=17
Microsoft MSDN Forums
http://social.msdn.microsoft.com/Forums/en-us/categories/
Thanks,
Edgar