Access Denied when I Kill a Process through WMI in C# -

i have console application. have used wmi terminate particular process. when run application in visual studio (ide), process getting terminated successfully.

i have build application , when run exe command prompt access denied.

i running both visual studio , command prompt(cmd.exe) administrator.

    public static void wmiprocesshelper(string servername, string processaction)     {         list<string> resultcode = null;         try         {             connectionoptions connectionoptions = new connectionoptions()             {                 impersonation = impersonationlevel.impersonate,              };              managementscope scope = getmanagementscope(root + servername + wmirootnamespace, connectionoptions);             scope.connect();              string wmiquery =                 "select * win32_process name = 'dllhost.exe' , commandline '%/processid:{69f26581-22fb-4a52-9a7a-806760e3cb7d}%'";             objectquery objectquery = new objectquery(wmiquery);              managementobjectsearcher searcher = new managementobjectsearcher(scope, objectquery);             managementobjectcollection objectcollection = searcher.get();             foreach (managementbaseobject managementbaseobject in objectcollection)             {                 if (resultcode == null)                 {                     resultcode = new list<string>();                 }                 managementobject process = (managementobject)managementbaseobject;                 console.writeline(string.format("{0} process.", processaction));                 object returnobject = process.invokemethod(processaction, null);                 if (returnobject != null)                 {                     int returncode;                     if (int.tryparse(returnobject.tostring(), out returncode))                     {                         console.writeline("return code = " + returncode);                         //resultcode.add(getprocesserrormessage(returncode));                     }                 }             }             if (resultcode == null)             {                 console.writeline("no process given properties exists. ");             }             //return getreturnmessage(resultcode, processaction);         }         catch (managementexception e)         {             console.writeline("exception occured: " + e.message);             throw;         }     }` 

what have done before this, copied working code. see connectionoptions varies depending on if local machine or not. need @ least set impersionation if used locally only. code connect on wrapper class around wmi.

        public void connect(ipaddress address, string username, string password, string subroot)     {         try         {             if ((connection != null) || ( scope != null))                 throw new alreadyconnectedexception("a wmi connection exists");              connection = new connectionoptions();             if (networkutility.islocalipaddress(address))             {                 connection.impersonation = system.management.impersonationlevel.impersonate;             }             else             {                 connection.username = username;                 connection.password = password;                 connection.authority = "ntlmdomain:";             }              scope = new managementscope("\\\\" + address.tostring() + "\\root\\" + subroot, connection);             //connecting remote machine             if (!scope.isconnected)                 scope.connect();         }         catch (exception ex)         {             ex.data.add("address", address.tostring());             ex.data.add("username", username);             ex.data.add("password", password);             ex.data.add("wmi namespace", subroot);             throw;         }      } 

this terminate code. dont see conceptual difference doing.

        public void terminateexecutingexe(string filename)     {         try         {              if ((scope == null))                 throw new notconnectedexception("no wmi connection exists");              objectquery objobjectquery = new objectquery("select * win32_process name = '"+filename+"'");             managementobjectsearcher objsearcher = new managementobjectsearcher(scope, objobjectquery);             foreach (managementobject queryobj in objsearcher.get())             {                    if (queryobj["name"].tostring().tolower() == filename.tolower())                     {                         object[] obj = new object[] { 0 };                         queryobj.invokemethod("terminate", obj);                     }              }             objsearcher = null;             objobjectquery = null;         }         catch (exception ex)          {             ex.data.add("filename", filename);             throw;         }     }