Does ExitWindowsEx() work for windows 8

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shutdown

I am using ExitWindowsEX() function to shutdown system. Its working in windows 7 and XP. But when i am running in the same thing in windows8 its not shutting down. I tried like this.,

HANDLE hToken; 
		TOKEN_PRIVILEGES tkp; 

		if (OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) 
		{
			LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid); 
			tkp.PrivilegeCount = 1; 
			tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 
			if (AdjustTokenPrivileges (hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0))
			   {
				//SetSystemPowerState(FALSE, TRUE);
				ExitWindowsEx(EWX_SHUTDOWN, 0);
			}
		}

How to do in windows 8 ?