[System.Runtime.InteropServices.DllImport("coredll.dll")] private static externInt32 SetSystemPowerState(Char[] psState, Int32 StateFlags, Int32 Options);

    static void Main(string[] args)
    {
        const int POWER_STATE_RESET = 0x800000;
        SetSystemPowerState(null, POWER_STATE_RESET, 0);
    }