In computing, <code>netsh</code>, or network shell, is a command-line utility included in Microsoft's Windows NT line of operating systems. This command was officially launched with the release of Windows XP in 2001, although <code>netsh</code> did first appear on Windows 2000 in 1999. It allows local or remote configuration of network devices such as the interface.
A common use of <code>netsh</code> is to reset the TCP/IP stack to default, known-good parameters, a task that in Windows 98 required reinstallation of the TCP/IP adapter.
netsh, among many other things, also allows the user to change the IP address on their machine.
Starting from Windows Vista, one can also edit wireless settings (for example, SSID) using <code>netsh</code>.
<code>netsh</code> can also be used to read information from the IPv6 stack.
The command <code>netsh winsock reset</code> can be used to reset TCP/IP problems when communicating with a networked device.