问题：

因为某些特殊原因，需要在AD域用户登陆Window 桌面时，任务栏会自动隐藏，但是AD域策略并不提供对应的策略，于是需要写个bat文件，让域控服务器在用户登陆时会自动执行这条bat。

代码：

这段代码是在网上找的。经测验，可以使用。但是在（域策略下发成功后）用户第一次登陆时并不能成功自动隐藏任务栏，而是在注销用户或者重启计算机后，第二次登陆才能开始自动隐藏任务栏。

/*&cls
@echo off
set "netpath=%systemroot%\Microsoft.NET\Framework"
for /f "delims=" %%a in ('dir /ad /b "%netpath%\v?.*"') do (
     if exist "%netpath%\%%a\csc.exe" (
         set "cscpath=%netpath%\%%a\csc.exe"
         goto :0
     )
)
echo;未安装.Net Framework 2.0及其上版本组件或相关程序丢失&pause&exit
:0
if not exist "%tmp%\$TaskBarHider.exe" (
     "%cscpath%" /nologo /out:"%tmp%\$TaskBarHider.exe" "%~f0"
)
"%tmp%\$TaskBarHider.exe" h
pause&exit
*/
using System;
using System.Runtime.InteropServices;
class TaskBarHider
{
     public struct RECT
     {
         public int Left;
         public int Top;
         public int Right;
         public int Bottom;
     }
     public struct APPBARDATA
     {
         public int cbSize;
         public int hwnd;
         public int uCallbackMessage;
         public int uEdge;
         public RECT rc;
         public int lParam;
     }
     public const int ABS_ALWAYSONTOP = 0x002;
     public const int ABS_AUTOHIDE = 0x001;
     public const int ABM_SETSTATE = 0x00A;
 
     [DllImport("shell32.dll")]
     public static extern int SHAppBarMessage(int dwmsg, ref APPBARDATA app);
     [DllImport("user32.dll", EntryPoint = "FindWindow")]
     public static extern int FindWindow(string lpClassName, string lpWindowName);
 
     public static void SetAppBarAutoDisplay(bool IsAuto)
     {
         APPBARDATA abd = new APPBARDATA();
         abd.hwnd = FindWindow("Shell_TrayWnd", "");
         if (IsAuto)
         {
             abd.lParam = ABS_AUTOHIDE;
             SHAppBarMessage(ABM_SETSTATE, ref abd);
         }
         else
         {
             abd.lParam = ABS_ALWAYSONTOP;
             SHAppBarMessage(ABM_SETSTATE, ref abd);
         }
     }
     static void Main(string[] args)
     {
         bool sta=false;
         if(args.Length==0)
         {
             Console.WriteLine("$TaskBarHider.exe [s/h]  显示/隐藏任务栏");
         }
         else
         {
             if(args[0] == "h" || args[0] == "H"){sta=true;}
             SetAppBarAutoDisplay(sta);
         }
         
     }
}