ISA SERVER

Installing ISA Server on Servers Running Windows Server 2003

You can also install ISA Server after you upgrade to Windows Server 2003. However, the packet filter extension driver in the release version of ISA Server is incompatible with Windows Server 2003, and it is blocked from loading during installation. During installation, you can safely ignore all error messages that are related to this issue because ISA Server SP1 includes a compatibility fix for the driver. After you install ISA Server, the incompatible software services do not start. You must then apply ISA Server SP1 to implement the driver fix. After you install ISA Server SP1, you must install the ISA Server 2000 Required Updates for Windows Server 2003 package.

Before you install ISA Server on a computer running Windows Server 2003, make sure that the computer is disconnected from the Internet. The computer must remain disconnected from the Internet until you successfully complete all the following steps. After that, you can safely connect the computer to the Internet.

Note: Do not remove (uninstall) ISA Server before you install ISA Server SP1. If you have to remove ISA Server, you must wait until you have completed your installation of ISA Server SP1.

To install ISA Server on Windows Server 2003, follow these steps:

1. Start the ISA Server Setup process. You receive the following message:

ISA 2000
ISA 2000 requires Service Pack 1 to function correctly on this version of Windows. During the installation, error messages and error event logs regarding compatibility might appear. These messages may be ignored during the installation. Install Service Pack 1 after this installation is complete. Service Pack 1 can be downloaded from http://go.microsoft.com/fwlink/?linkid=4833.
For more information, contact Microsoft.

2. Click Continue. When Setup completes the installation of ISA Server, you receive the following message in the notification area:

Devices or applications disabled
'ISA 2000' will cause Windows to become unstable. Windows has prevented these drivers from loading. Click here for more details.

3. When Setup is complete, you receive the following message:

Setup has failed to start one or more services. Please examine the event log for more details.

4. Download and install ISA Server SP1. After you install SP1, you must restart the ISA Server computer.
5. After the computer restarts, download and install the ISA Server 2000 Required Updates for Windows Server 2003 package.
6. Alternatively, instead of performing steps 4 and 5 above, you can install SP2 alone.

After you install the ISA Server 2000 Required Updates for Windows Server 2003 package, ISA Server functions correctly.
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