Windows Vista: IPv6 is installed and enabled by default in Windows Vista.

Computer Tips - Windows Vista: IPv6 is installed and enabled by default in Windows Vista.

Date: 2006Dec5 OS: Windows Vista Keywords: turn off, IPv6, disable Warning: Windows Vista is obsolete Q. Windows Vista: IPv6 is installed and enabled by default in Windows Vista. How to disable it? A. Set

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters] "DisabledComponents"=dword:000000ff

(The source for this info was the Cable Guy blog in the Microsoft site)