Fix vista activation DNS error 0x8007232b

During Windows Web Server 2008 Activation if you get this error:

Windows Activation Error: A problem occurred when Windows tried to activate.
Error Code 0x8007232B.
For a possible resolution, click More Information. Contact your system administrator or technical support department for assistance.

DNS name does not exist.

Fix vista activation DNS error 0x8007232b:
Control Panel > System > Windows activation and then click "Change Product Key".
Enter the same product key you have been given by microsoft. (It's the same key you used to install Win Vista.) This time your windows will activate successfully.