A WCF-WPF Chat Application

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <bindings>
            <netTcpBinding>
                <binding name="NetTcpBinding_IChat" closeTimeout="00:01:00" openTimeout="00:01:00"
                    receiveTimeout="00:10:00" sendTimeout="00:01:00" transactionFlow="false"
                    transferMode="Buffered" transactionProtocol="OleTransactions"
                    hostNameComparisonMode="StrongWildcard" listenBacklog="10"
                    maxBufferPoolSize="67108864" maxBufferSize="67108864" maxConnections="100"
                    maxReceivedMessageSize="67108864">
                    <readerQuotas maxDepth="32" maxStringContentLength="67108864" maxArrayLength="67108864"
                        maxBytesPerRead="67108864" maxNameTableCharCount="16384" />
                    <reliableSession ordered="true" inactivityTimeout="20:00:10"
                        enabled="true" />
                    <security mode="None">
                        <transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
                        <message clientCredentialType="Windows" />
                    </security>
                </binding>
            </netTcpBinding>
        </bindings>
        <client>
            <endpoint address="net.tcp://localhost:7997/WPFHost/tcp" binding="netTcpBinding"
                bindingConfiguration="NetTcpBinding_IChat" contract="SVC.IChat"
                name="NetTcpBinding_IChat" />
        </client>
    </system.serviceModel>
</configuration>