how can i kill any app through c# from remote machine

Question

i am using below code but showing error like - Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) 

         

var option = new ConnectionOptions();

option.Username = sys_admin_user_txt.Text;

option.Password = sys_admin_password_txt.Text;

var Kill = exe_name_txt.Text;

//string Kill = exe_name_txt.Text;

ManagementScope scope = new ManagementScope(@"\\"+ ftp +"\\root\\cimv2", option);

// WMI query

var query = new SelectQuery("select * from Win32_process where name = '" + Kill + "'");

using (var searcher = new ManagementObjectSearcher(scope, query))

{

foreach (ManagementObject process in searcher.Get()) // this is the fixed line

{

process.InvokeMethod("Terminate", null);

}