----------------------------------------
On Exchange Server - reboot required 
----------------------------------------
Key:	HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters
Multi-string Value Name:	NSPI interface protocol sequences
Multi-string Value Data:	ncacn_http:6004




---------------------------
On Exchange Server 2003 SP1
---------------------------
Key: 		HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\RpcProxy
String Value:	ValidPorts


Ports: 
------
6001-6002
6004


Exchange Server:
--------------------
E2k3
E2k3.net.local


External DNS name - used in SSL Certificate and OWA:
---------------------------------------------------
web2.netometer.com