this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.MinimizeBox = true;

------解决方案--------------------
1 this.FormBorderStyle = FormBorderStyle.FixedDialog;
           this.MaximizeBox = false;
           this.MinimizeBox = false;

 2          NotifyIcon _NotifyIcon = new NotifyIcon();
           _NotifyIcon.Icon = this.Icon;
           _NotifyIcon.Visible = true;


  3           System.Diagnostics.Process.Start("http://www.zz.ha.cn");

           System.Diagnostics.Process[] _ProcessList = System.Diagnostics.Process.GetProcessesByName("IEXPLORE");

           for (int i = 0; i != _ProcessList.Length; i++)
           {
               MessageBox.Show(_ProcessList[i].MainWindowTitle);
               //判断
               //_ProcessList[i].Kill();  //关闭窗体
           }