TCP/IP Chat Application Using C#

using System;
using System.Collections.Generic;
using System.Text;

namespace Proshot.CommandServer
{
    /// <summary>
    /// The type of commands that you can sent to the clients.(Note : These are just some comman types.You should do the desired actions when a command received to the client yourself.)
    /// </summary>
    public enum CommandType
    {
        /// <summary>
        /// Force the target to logoff from the application without prompt.Pass null or "" as command's Metadata.
        /// </summary>
        UserExit ,
        /// <summary>
        /// Force the target to logoff from the application with prompt.Pass the timer interval of logoff action as command's Metadata in miliseconds.For example "20000".
        /// </summary>
        UserExitWithTimer ,
        /// <summary>
        /// Force the target PC to LOCK without prompt.Pass null or "" as command's Metadata.
        /// </summary>
        PCLock ,
        /// <summary>
        /// Force the target PC to LOCK with prompt.Pass the timer interval of LOCK action as command's Metadata in miliseconds.For example "20000".
        /// </summary>
        PCLockWithTimer ,
        /// <summary>
        /// Force the target PC to RESTART without prompt.Pass null or "" as command's Metadata.
        /// </summary>
        PCRestart ,
        /// <summary>
        /// Force the target PC to RESTART with prompt.Pass the timer interval of RESTART action as command's Metadata in miliseconds.For example "20000".
        /// </summary>
        PCRestartWithTimer ,
        /// <summary>
        /// Force the target PC to LOGOFF without prompt.Pass null or "" as command's Metadata.
        /// </summary>
        PCLogOFF ,
        /// <summary>
        /// Force the target PC to LOGOFF with prompt.Pass the timer interval of LOGOFF action as command's Metadata in miliseconds.For example "20000".
        /// </summary>
        PCLogOFFWithTimer ,
        /// <summary>
        /// Force the target PC to SHUTDOWN without prompt.Pass null or "" as command's Metadata.
        /// </summary>
        PCShutDown ,
        /// <summary>
        /// Force the target PC to SHUTDOWN with prompt.Pass the timer interval of SHUTDOWN action as command's Metadata in miliseconds.For example "20000".
        /// </summary>
        PCShutDownWithTimer ,
        /// <summary>
        /// Send a text message to the server.Pass the body of text message as command's Metadata.
        /// </summary>
        Message ,
        /// <summary>
        /// This command will sent to all clients when an specific client is had been logged in to the server.The metadata of this command is in this format : "RemoteClientIP:RemoteClientName"
        /// </summary>
        ClientLoginInform ,
        /// <summary>
        /// This command will sent to all clients when an specific client is had been logged off from the server.
        /// </summary>
        ClientLogOffInform ,
        /// <summary>
        /// This command will send to the new connected client with MetaData of 'True' or 'False' in replay to the same command that client did sent to the server as a question.
        /// </summary>
        IsNameExists,
        /// <summary>
        /// This command will send to the new connected client with MetaData in "RemoteClientIP:RemoteClientName" format in replay to the same command that client did sent to the server as a request.
        /// </summary>
        SendClientList,
        /// <summary>
        /// This is a free command that you can sent to the clients.
        /// </summary>
        FreeCommand
    }
}