#1 Would the order of my rules effect if RPC/HTTP worked or not? I have the following setup: Exchange rule 1 (DNS/SMTP) Exchange rule 2 (SMTP) OWA and RPC/HTTP OWA Redirection Web Enrollment Site Workstations to Net Servers to Net Web Site 1 Web Site 2 Web Site 3 Web Site 4 Web Site 5 Deny Rule #2 My Exchange server is using SecureNAT, its gateway points to ISA Server, would this be effect the RPC over HTTP? #3 I installed RPC over HTTP my only one Exchange server, I added the rpc proxy info to the registry and changed the RPC/HTTP in Exchange so that server is acting like a BE. I looked for the NTDS registry key but there isn't one in my system, its for the global cataloging. Sounds correct? -- Open to suggestions. Andrew