Disable the Windows Firewall/Internet Connection Sharing (ICS) service with
services.msc.
[[ If you enable this setting, Internet Connection Firewall cannot be
enabled or configured by users (including administrators), and the Internet
Connection Firewall service cannot run on the computer.]]
Prohibit use of Internet Connection Firewall on your DNS domain network
http://www.boyce.us/gp/gpcontent.asp?ID=182
[[If you are using Group Policy to configure Windows Firewall for computers
running Windows XP with SP2, the Group Policy settings you configure might
not allow local configuration. In this case, the options on the General tab
and the other tabs might be unavailable, even when you log on with an
account that is a member of the local Administrators group (a local
administrator).
Group Policy-based Windows Firewall settings allow you to configure a domain
profile (a set of Windows Firewall settings that are applied when you are
attached to a network that contains domain controllers) and standard profile
(a set of Windows Firewall settings that are applied when you are attached
to a network that does not contain domain controllers, such as the
Internet). You can determine which profile is in effect from the text in the
lower part of the General tab. If the text displayed is “Windows Firewall is
using your domain settings,” the domain profile is in effect. If the text
displayed is “Windows Firewall is using your non-domain settings,” the
standard profile is in effect.]]
http://www.microsoft.com/technet/community/columns/cableguy/cg0204.mspx
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Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In