The Internet Security and Acceleration Server 2000 Firewall Client is not supported on Internet Security and Acceleration Server 2000

At no time should you install or place the Internet Security and Acceleration Sever (ISA) 2000 Firewall Client on an ISA 2000 server. Firewall Client is not supported or necessary on a computer that is running ISA 2000 Server.

The following list is a summary of some of the issues that you may encounter if you install the ISA 2000 Firewall Client or Proxy 2.0 Winsock proxy client on an ISA 2000 server:

• You may be unable to telnet to port 25 on a remote server from the ISA 2000 server.
• You may be unable to telnet to port 110 on a remote server from the ISA 2000 server.
• On the SecureNat clients, one of the following errors may be displayed when you are attempting to browse the Internet:
  • Internet Explorer could not open the search page.The page cannot be displayed.Cannot find server or DNS Error Internet Explorer.

The clients that have the Web proxy service or the Firewall Client services installed may not encounter problems when the browser is being used.

If you install the ISA 2000 Firewall Client on an ISA 2000 server, a loop with the Firewall Service for all Winsock applications occurs.

To Uninstall the Firewall Client

1. Click Start, point to Settings, and then click Control Panel.
2. Double-click the Add/Remove Programs icon.
3. Click the Microsoft Firewall Client, and then click Remove.
4. When you are prompted with the following message, click Yes:
   Are you sure you want to remove Microsoft Firewall Client from your computer?
5. After you remove the Firewall Client, restart the ISA 2000 server.

To Disable the Firewall Client

1. Click Start, point to Settings, click Control Panel, and then double-click the Firewall Client icon.
2. Click to clear the Enable Firewall Client check box.
3. Click OK.