Disable Windows Firewall in XP Pro connected to a SBS 2008 domain

I am trying to diable the windows firewall on an XP Pro workstation with SP3.  It is connected to a domain running SBS 2008.  I have read experts-exchange article ID: 24629693 and followed it to a T.  If I either reboot the workstation or run gpudate /force the option to disable the firewall remains greyed out.  The only way I can disable the firewall is to disable the service.  I know the consequences of stopping the firewall but I want/need to do it.  Can you suggest another way to accomplish this.
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Rob WilliamsCommented:
There are 3 GPO's that affect the firewall on client machines in and SBS 2008 domain.
Open the group policy management console on the SBS and edit each of the 3 following GPO's, or the ones that match the types of client PC's you have. They can be found under My Business | Computers | SBS Computers or  under Group Policy Objects:
   Windows SBS Client - Windows Vista Policy
   Windows SBS Client - Windows XP Policy
   Windows SBS Client

The item to edit is:
Computer Configuration | Policies | Administrative Templates | Network |  Network Connections | Windows Firewall | DOMAIN Profile | Protect All Network connections
By default this is set to enabled. Setting to disabled will turn it off, setting to not configured allows administrators to enable or disable the firewall on the PC.

Note this only affects computers while connected to your domain. If you want to affect them while outside of your domain (not recommended) you also need to edit:
Computer Configuration | Policies | Administrative Templates | Network |  Network Connections | Windows Firewall | STANDARD Profile | Protect All Network connections

There is another GPO:  Computer Configuration | Policies | Administrative Templates | Network |  Network Connections | Prohibit use of Internet Connection Firewall on your DNS domain network", which can override the above. The default is set to not configured, but if has been changed to enabled or disabled it will force enabling or disabling of the firewall and administrators have no control. This should be left as "not configured"

Remember it can take up to 90 minutes for the policy to be applied to the workstations. You can force this almost immediately by running at a command line, on the workstation:
gpupdate /force
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