Service and Pipe server on nodejs throws exception

Hello, I am getting the following exception and I don't understand why:

2013-1-5 16:18:41 uncaughtException {"code":"EPERM","errno":"EPERM","syscall":"connect"}

I start the service from LocalHost, it binds to a client named piped with tray icon (node ​​webkit use), but the connection is not established. All on nodejs.

server (service)
    pipe_server = net.createServer( function( c ) { log( 5, 'pipe server started' );
    pipe_server_connection = c;
    c.pipe( c );
    pipe_server.listen( '\\\\.\\pipe\\ag', function() { //'listening' listener
        log(5, '8bitagent listen pipe...');
    });

client (tray icon)

pipe_client = net.connect( '\\\\.\\pipe\\ag', function(){ log( 5, 'pipe client connected' );