Disable Windows XP SP2 Firewall

Windows XP Service Pack 2 enables firewall by default. To prevent firewall enabled after installation, apply the registry setting BEFORE install SP2.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall]

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile]
"EnableFirewall"=dword:00000000

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile]
"EnableFirewall"=dword:00000000