在Windows2000中关机与在Windows98中不一样，需要首先获得权限，然后调用关机API函数，才能关机。以下是具体的步骤：
第一步： 声明结构-----------------------------------------------------------------------
需要声明三个结：LUID, LUID_AND_ATTRIBUTES, token_privileges
LUID
long lowpart long highpart
LUID_AND_ATTRIBUTES
luid pLuid long Attributes
token_privileges
long privilegecount luid_and_attributes privileges[]
第二步： 声明外部扩展函数-----------------------------------------------------------------------
FUNCTION ulong ExitWindowsEx(ulong uFlags,ulong dwReserved) LIBRARY "user32.dll"FUNCTION ulong GetCurrentProcess() LIBRARY "kernel32.dll"FUNCTION ulong LookupPrivilegeValue(ref string lpSystemName,ref string lpName,ref Luid lpLuid) LIBRARY "advapi32.dll" ALIAS FOR "LookupPrivilegeValueA"FUNCTION ulong AdjustTokenPrivileges(ulong TokenHandle,boolean DisableAllPrivileges,ref TOKEN_PRIVILEGES NewState,ulong BufferLength,ref TOKEN_PRIVILEGES PreviousState,ref ulong ReturnLength) LIBRARY "advapi32.dll"FUNCTION ulong OpenProcessToken(ulong ProcessHandle,ulong DesiredAccess,ref ulong TokenHandle) LIBRARY "advapi32.dll"
第三步： 程序脚本
-----------------------------------------------------------------------
/*获得关机权限*/
string ls_lpSystemName,ls_lpNamels_lpname='SeShutdownPrivilege'ulong lu_hdlProcessHandle,lu_hdlTokenHandle,lu_lBufferNeededluid lst_tmpLuidTOKEN_PRIVILEGES lst_tkpTOKEN_PRIVILEGES lst_tkpNewButIgnoredlu_hdlProcessHandle = GetCurrentProcess()OpenProcessToken(lu_hdlProcessHandle,40, lu_hdlTokenHandle)LookupPrivilegeValue( ls_lpSystemName, ls_lpname, lst_tmpLuid)lst_tkp.PrivilegeCount = 1lst_tkp.Privileges[1].pLuid = lst_tmpLuidlst_tkp.Privileges[1].Attributes = 2 AdjustTokenPrivileges(lu_hdlTokenHandle, False, lst_tkp,16, lst_tkpNewButIgnored,lu_lBufferNeeded)
/*关机*/
ExitWindowsEx (9,0)
/* The End */
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