Windows SID change for 64 bit, 2003 server

On Windows Server 2003, 64 bit Server and Windows 2008 Server , it might give issue to change the server name and modify accordingly in registry. In case NEWSID command is not working on server, binaries and instructions are available on page : http://technet.microsoft.com/en-us/sysinternals/bb897418.aspx. In case this portal is unavailable click to download the installer.