How to Upgrade an Exchange Server 2003 RPC over HTTP Deployment to Exchange Server 2003 SP1

This topic explains how to upgrade a Microsoft® Exchange Server 2003 RPC over HTTP deployment to Exchange Server 2003 Service Pack 1 (SP1). Follow these instructions when upgrading to preserve your previous settings for RPC over HTTP.

Before You Begin

Before you perform the procedure in this topic, confirm the following:

• You have read System Requirements for RPC over HTTP on Exchange Server 2003.

• Your RPC proxy server has the RPC over HTTP Microsoft Windows® networking component for Internet Information Services (IIS) installed. If you are upgrading an existing RPC over HTTP deployment, this should already be completed.

• You have upgraded your front-end servers to Exchange Server 2003 SP1.

• You are running Exchange Server 2003 on your back-end servers. You can have SP1 installed on your back-end servers, but it is not necessary.

Procedure

To upgrade an Exchange Server 2003 RPC over HTTP deployment to Exchange Server 2003 SP1

1. Configure each of your Exchange back-end servers to act as targets for the RPC proxy servers. For detailed steps, see How to Configure the Back-End Server to Act as a Target for the RPC Proxy Server.

   Note

   By performing this task, you set an Active Directory® directory service property that indicates to a front-end server that these back-end servers should be published for RPC over HTTP access. If your topology has multiple global catalog servers, you might want to wait for Active Directory replication to propagate these properties before proceeding to the next step.

2. Configure each of your Exchange front-end servers to act as RPC proxy servers. For detailed steps, see How to Configure the RPC Proxy Server Settings on a Front-End Server in Exchange System Manager.

   Note

   When you reconfigure your Exchange servers to use RPC over HTTP, you will receive the following warning messages if you have already configured your Exchange front-end servers to use RPC over HTTP.

   Warning message—RPC over HTTP already configured

   

3. When you receive this message, click OK to allow Exchange to automatically manage the RPC over HTTP registry keys. Your old configuration will be backed up to the file that is referenced in the dialog box.

For More Information

• If you are deploying RPC over HTTP for the first time on Exchange Server 2003, and have not installed SP1 on your Exchange servers, see one of the following articles:

  • How to Deploy RPC over HTTP for the First Time on Exchange Server 2003, Front-End/Back-End Scenario

  • How to Deploy RPC over HTTP for the First Time on Exchange Server 2003, Front-End/Back-End Scenario, Back End on Global Catalog Server

  • How to Deploy RPC over HTTP for the First Time on Exchange Server 2003, No Front-End Server

  • How to Deploy RPC over HTTP for the First Time on Exchange Server 2003, No Front-End Server, Back-End on Global Catalog Server

• If you are deploying RPC over HTTP for the first time on Exchange Server 2003 SP1, see one of the following topics:

  • How to Deploy RPC over HTTP for the First Time on Exchange Server 2003 SP1 (Front-End/Back-End Scenario)

  • How to Deploy RPC over HTTP for the First Time on Exchange Server 2003 SP1, No Front-End Server

• If you want to add another Exchange Server 2003 back-end server to your organization after you have deployed RPC over HTTP, see Adding a Back-End Server to an RPC over HTTP Deployment.

• If you want help with troubleshooting RPC over HTTP communications, see Troubleshooting RPC over HTTP Communications.