Disconnects the server end of a named pipe instance from a client process
_NamedPipes_DisconnectNamedPipe ( $hNamedPipe )
|$hNamedPipe||Handle to the server end of a named pipe instance.|
If the client end of the named pipe is open, the _NamedPipes_DisconnectNamedPipe() function forces that end of the named pipe closed.
The client receives an error the next time it attempts to access the pipe.
A client that is forced off a pipe must still use the _WinAPI_CloseHandle() function to close its end of the pipe.
Search DisconnectNamedPipe in MSDN Library.