如何将此扩展到远程计算机(获取windows服务)?

我有以下代码,用于获取在某台计算机上运行的所有Windows服务。如果该计算机是我正在运行的计算机,则工作正常,但如果它是远程计算机,则会出现“拒绝访问”异常,因为我没有传入用户名/密码。

static void Main(string[] args)
        {
            bool filter;
            string machineName = "mymachine";
            string objPath = String.Format("\\\\{0}\\root\\cimv2:Win32_Service",machineName);

            ManagementClass servicesMC = new ManagementClass(new ManagementPath(objPath));
            Dictionary<string, string> ServicesDict = new Dictionary<string, string>();
            List<string> Aggregate = new List<string>();

            foreach (ManagementObject service in servicesMC.GetInstances())
            {
                //Console.WriteLine(service.GetPropertyValue("Name"));
            }