好的,所以它可能与 SE_SHUTDOWN_NAME 权限有关。我不确定为什么它在 .NET 3.5 而不是 .NET 4.0 下工作,但以下解决方法有效:
[StructLayout( LayoutKind.Sequential, Pack = 1 )]
internal struct TokPriv1Luid
{
public int Count;
public long Luid;
public int Attr;
}
[DllImport( "kernel32.dll", ExactSpelling = true )]
internal static extern IntPtr GetCurrentProcess();
[DllImport( "advapi32.dll", ExactSpelling = true, SetLastError = true )]
internal static extern bool OpenProcessToken( IntPtr h, int acc, ref IntPtr phtok );
[DllImport( "advapi32.dll", SetLastError = true )]
internal static extern bool LookupPrivilegeValue( string host, string name, ref long pluid );
[DllImport( "advapi32.dll", ExactSpelling = true, SetLastError = true )]
internal static extern bool AdjustTokenPrivileges( IntPtr htok, bool disall, ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen );
[DllImport( "user32.dll", ExactSpelling = true, SetLastError = true )]
internal static extern bool ExitWindowsEx( int flg, int rea );
public const int SE_PRIVILEGE_ENABLED = 0x00000002;
public const int TOKEN_QUERY = 0x00000008;
public const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;
public const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";
public const int EWX_LOGOFF = 0x00000000;
public const int EWX_SHUTDOWN = 0x00000001;
public const int EWX_REBOOT = 0x00000002;
public const int EWX_FORCE = 0x00000004;
public const int EWX_POWEROFF = 0x00000008;
public const int EWX_FORCEIFHUNG = 0x00000010;
public static bool DoExitWin( int flg )
{
TokPriv1Luid tp;
var hproc = GetCurrentProcess();
var htok = IntPtr.Zero;
OpenProcessToken( hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok );
tp.Count = 1;
tp.Luid = 0;
tp.Attr = SE_PRIVILEGE_ENABLED;
LookupPrivilegeValue( null, SE_SHUTDOWN_NAME, ref tp.Luid );
AdjustTokenPrivileges( htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero );
return ExitWindowsEx( flg, 0 );
}
我没有尝试过,但我的猜测是 WMI 调用在使用 AdjustTokenPrivileges 调用之后也可能起作用。