I have an RPC over HTTP setup running but I have a question regarding the config. I have read all of Microsoft's TechNet info on RPC over HTTP but I cannot find this bit of information... My Exchange 2003 SP-2 box is NOT a DC and therefore it is NOT a Global Catalog server. My Global Catalog server is on a DC, on another physical box. What are the registry edits that I must have on the Exchange Box and the DC/GC server? I want to verify I have them. I am planning to decommission the original DC after I bring up a new DC/GC to replace the aged hardware. According to Microsoft, if my GC was on my Exchange Server, I put in the following: 1. On the RPC proxy server, start Registry Editor (Regedit). 2. In the console tree, locate the following registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\RpcProxy 3. In the details pane, right-click the ValidPorts subkey, and then click Modify. 4. In Edit String, in the Value data box, type the following information: ExchangeServer :6001-6002; ExchangeServerFQDN :6001-6002; ExchangeServer :6004; ExchangeServerFQDN :6004 * ExchangeServer is the NetBIOS name of your Exchange server. * ExchangeServerFQDN is the fully qualified domain name (FQDN) of your Exchange server. If the FQDN that is used to access the server from the Internet differs from the internal FQDN, you must use the internal FQDN. And then: 1. On the RPC proxy server, start Registry Editor (Regedit). 2. In the console tree, locate the following registry key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\NTDS\Parameters 3. Click Edit, click New, and then select Multi String Value. 4. Create a multi-string value with the name NSPI interface protocol sequences. 5. Right-click the NSPI interface protocol sequences multi-string value, and then click Modify. 6. In the Value data field, enter ncacn_http:6004. 7. In Registry Editor, click File, and then click Exit to save your settings. 8. You must now restart your server for the settings to be applied. But this info seems to be for the Exchange box being the same as the GC box. Microsoft said if I have one of the following 2 scenarios, I can setup RPC over HTTP: * "You have one of the following scenarios: * The back-end role and the global catalog role are applied on separate servers. * The back-end role and the global catalog role are applied on the same server. I have the first scenario, and it currently works, but I just want to verify what I need in the Registry on the Exchange box and on the separate DC/GC box. This was never documented when it was first setup. Thanx, Tom Rogers Systems Administrator Schneider Packaging Equipment ________________________________ This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed.If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. P Please consider the environment before printing this email.