Windows XP IPv6 - IPv6 Intelligenceکد:IPv6 is not enabled by default in Microsoft Windows XP SP2, it has to be explicitly installed and enabled. Proper IPv6 support was added with the "Advanced Networking Pack" and updated in the Service Pack 2.
Several subprotocols are missing and left for future work/third party software — most notably DHCPv6 (Dibbler), PPPv6 and IPv6 Mobility (both unaccounted for).