/// <summary>
        /// Adds new user to specified DomainName.
        /// </summary>
        /// <param name="fullName">User full name.</param>
        /// <param name="userName">User login name.</param>
        /// <param name="password">User login password.</param>
        /// <param name="Description">User Description.</param>
        /// <param name="emails">User Emails addresses.</param>
        /// <param name="domainID">DomainName ID of DomainName where to add user.</param>
        /// <param name="mailboxSize">Maximum mailbox size.</param>
        /// <param name="enabled">Sepcifies if user is enabled.</param>
        /// <param name="allowRelay">Specifies if user can relay.</param>
        /// <param name="remPop3Accounts">Byte DataSet Pop3RemServSchema or null.</param>
        /// <returns></returns>
        public DataRow AddUser(string fullName,string userName,string password,string Description,string emails,string domainID,int mailboxSize,bool enabled,bool allowRelay,byte[] remPop3Accounts)
        {
            DataRow retVal = null;

            switch(m_DB_Type)
            {
                #region DB_Type.XML

                    case DB_Type.XML:

                        DataSet dsUsersCopy = dsUsers.Copy();

                        DataRow dr = dsUsersCopy.Tables["Users"].NewRow();
                        dr["UserID"]       = Guid.NewGuid().ToString();
                        dr["DomainID"]     = domainID;
                    //	dr["DomainName"]   = domainName;
                        dr["FULLNAME"]     = fullName;
                        dr["USERNAME"]     = userName;
                        dr["PASSWORD"]     = password;
                        dr["Description"]  = Description;
                        dr["Emails"]       = emails;
                        dr["Mailbox_Size"] = mailboxSize;
                        dr["Enabled"]      = enabled;
                        dr["AllowRelay"]   = allowRelay;

                        if(remPop3Accounts != null){
                            dr["RemotePop3Servers"] = remPop3Accounts;
                        }

                        dsUsersCopy.Tables["Users"].Rows.Add(dr);
                        dsUsersCopy.WriteXml(m_DataPath + "Users.xml",XmlWriteMode.IgnoreSchema);

                        return dr;

                    #endregion

                #region DB_Type.MSSQL

                    case DB_Type.MSSQL:
                        using(WSqlCommand sqlCmd = new WSqlCommand(m_ConStr,"lspr_AddUser")){
                            sqlCmd.AddParameter("@FullName"          ,SqlDbType.NVarChar,fullName);
                            sqlCmd.AddParameter("@UserName"          ,SqlDbType.NVarChar,userName);
                            sqlCmd.AddParameter("@Password"          ,SqlDbType.NVarChar,password);
                            sqlCmd.AddParameter("@Description"       ,SqlDbType.NVarChar,Description);
                            sqlCmd.AddParameter("@Emails"            ,SqlDbType.NVarChar,emails);
                            sqlCmd.AddParameter("@DomainID"          ,SqlDbType.NVarChar,domainID);
                            sqlCmd.AddParameter("@MailboxSize"       ,SqlDbType.NVarChar,mailboxSize);
                            sqlCmd.AddParameter("@Enabled"           ,SqlDbType.Bit,enabled);
                            sqlCmd.AddParameter("@AllowRelay"        ,SqlDbType.Bit,allowRelay);
                            sqlCmd.AddParameter("@RemotePop3Servers" ,SqlDbType.Image,remPop3Accounts);

                            DataSet ds = sqlCmd.Execute();
                            ds.Tables[0].TableName = "Users";

                            if(ds.Tables["Users"].Rows.Count > 0){
                                return ds.Tables["Users"].Rows[0];
                            }
                        }
                        break;

                    #endregion

                #region DB_Type.WebServices

                case DB_Type.WebServices:
                    using(RemoteAdmin eng = new RemoteAdmin()){
                        _Core.InitWebService(m_WebServicesUrl,m_WebServicesPwd,m_WebServicesUser,eng);

                        return eng.AddUser(fullName,userName,password,Description,emails,domainID,mailboxSize,enabled,allowRelay,remPop3Accounts).Tables["Users"].Rows[0];
                    }

                #endregion
            }

            return retVal;
        }