老师：
您好！
我在编译《C#开发典型模块大全》一书中第三章中项目源码时出现以下错误信息:
第一、警告 方法“Word._Document.Close(ref object, ref object, ref object)”和非方法“Word.DocumentEvents2_Event.Close”之间存在二义性。将使用方法组。
第二、编译运行到
private void frmMain_Load(object sender, EventArgs e)
        {
            //加载所有的服务器名称
            getSQLServer();
            cbbSqlServerName.SelectedIndex = 0;

        }
        private void getSQLServer()
        {
            SQLDMO.Application SQLServer = new SQLDMO.Application();
            SQLDMO.NameList strServerList = SQLServer.ListAvailableSQLServers();不再运行，并弹出排错提示，排错提示的详细信息如下：
未处理 System.Runtime.InteropServices.COMException
  Message="[SQL-DMO]代码执行异常错误: EXCEPTION_ACCESS_VIOLATION"
  Source="Microsoft SQL-DMO"
  ErrorCode=-2147221499
  StackTrace:
       在 SQLDMO.ApplicationClass.ListAvailableSQLServers()
       在 SQL_Distill.frmMain.getSQLServer() 位置 E:\软件开发\范例\03\SQL-Distill\SQL-Distill\frmMain.cs:行号 33
       在 SQL_Distill.frmMain.frmMain_Load(Object sender, EventArgs e) 位置 E:\软件开发\范例\03\SQL-Distill\SQL-Distill\frmMain.cs:行号 26
       在 System.Windows.Forms.Form.OnLoad(EventArgs e)
       在 System.Windows.Forms.Form.OnCreateControl()
       在 System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       在 System.Windows.Forms.Control.CreateControl()
       在 System.Windows.Forms.Control.WmShowWindow(Message& m)
       在 System.Windows.Forms.Control.WndProc(Message& m)
       在 System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       在 System.Windows.Forms.ContainerControl.WndProc(Message& m)
       在 System.Windows.Forms.Form.WmShowWindow(Message& m)
       在 System.Windows.Forms.Form.WndProc(Message& m)
       在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       在 System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       在 System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef hWnd, Int32 nCmdShow)
       在 System.Windows.Forms.Control.SetVisibleCore(Boolean value)
       在 System.Windows.Forms.Form.SetVisibleCore(Boolean value)
       在 System.Windows.Forms.Control.set_Visible(Boolean value)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       在 System.Windows.Forms.Application.Run(Form mainForm)
       在 SQL_Distill.Program.Main() 位置 E:\软件开发\范例\03\SQL-Distill\SQL-Distill\Program.cs:行号 17
       在 System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       在 System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       在 Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       在 System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       在 System.Threading.ThreadHelper.ThreadStart()
  InnerException: 请教如何排除？