WMI - Executing external Programs

hello, im using this function to execute external program, running as windows Administrator user
It runs successfuly using administrator user, I checked using Task Manager. But it runs hidden. The window is not shown

help!



        public string RunWMI(string domain, string userID, string pwd, string appString, string argString)
        {
            string rc = "";
            ConnectionOptions options = new ConnectionOptions();
            string serverName = System.Net.Dns.GetHostName();
            // because we are impersonating and running against the local machine
            // we do not validate
            //options.Username = domain + @"\" + userID;
            //options.Password = pwd;
            //Create a scope to work in
            ManagementScope WmiScope = new ManagementScope(@"\\" + serverName, options);
            WmiScope.Connect();
            ManagementClass processClass = new ManagementClass("Win32_Process");
            processClass.Scope = WmiScope;
            ManagementClass startup;
            startup = new ManagementClass("WIN32_ProcessStartup");
            startup.Scope = WmiScope;
            startup["ShowWindow"] = 3;
            startup["X"] = 10;
            startup["Y"] = 10;
            //Get an input parameters object for this method
            ManagementBaseObject inParams = processClass.GetMethodParameters("Create");
            //Fill in input parameter values
            inParams["CommandLine"] = appString + " " + argString; //' Or whatever application you want
            inParams["ProcessStartupInformation"] = startup;
            //Note: The return code of the method is provided in the "returnValue" property of the outParams object
            ManagementBaseObject outParams = processClass.InvokeMethod("Create",inParams, null);
            return rc;
        }