How to disable certain Internet Protocol version 6 (IPv6) components in Windows Vista, Windows 7 and Windows Server 2008

This article describes step-by-step instructions for how to disable certain Microsoft Internet Protocol version 6 (IPv6) components in Windows Vista. To disable IPv6 components, you must be logged on to the Windows Vista computer as a member of the Administrators group, or your user account must be granted permissions to edit the Windows registry.

To disable certain IPv6 components in Windows Vista, follow these steps:
Click Start. Collapse this imageExpand this image, type regedit in the Start Search box, and then click regedit.exe in the Programs list.In the User Account Control dialog box, click Continue.In Registry Editor, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\ Double-click DisabledComponents to modify the DisabledComponents entry.Note If the DisabledComponents entry is unavailable, you must create it. To do this, follow these steps:

In the Edit menu, point to New, and then click DWORD (32-bit) Value.
Type DisabledComponents, and then press ENTER.
Double-click DisabledComponents.

Type any one of the following values to configure the IPv6 protocol, and then click OK:
Type 0 to enable all IPv6 components.

Note The value "0" is the default setting.

Type 0xffffffff to disable all IPv6 components, except the IPv6 loopback interface.
Type 0x20 to use IPv4 instead of IPv6 in prefix policies.
Type 0x10 to disable native IPv6 interfaces.
Type 0x01 to disable all tunnel IPv6 interfaces.
Type 0x11 to disable all IPv6 interfaces except for the IPv6 loopback interface.

Note

Using a value other than 0x0 or 0x20 will cause the Routing and Remote Access service to fail after this change goes into effect. You must restart your computer for these changes to take affect.

Administrators must create an ADMX file in order to expose the settings in a Group Policy setting.

Open the Program Compatibility troubleshooter in Windows 7

Most programs written for Windows Vista also work in this version of Windows, but some older programs might run poorly or not at all. If an older program doesn't run correctly, use the Program Compatibility troubleshooter to simulate the behavior of earlier versions of Windows.


Open the Program Compatibility troubleshooter by clicking the Start button, and then clicking Control Panel. In the search box, type troubleshooter, and then click Troubleshooting. Under Programs, click Run programs made for previous versions of Windows.