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C# WMI SetMTU System.ManagementException

We are working on a programm to configure some NICs.
We have to change IP Adresses, Subnetmask and the MTU.
Everything went well except the MTU Statement:
public void SetMTU()
{
ManagementClass objMC = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection objMOC = objMC.GetInstances();
foreach (ManagementObject objMO in objMOC)
{
if (networkadapterID == (String)objMO["SettingID"])
{
ManagementBaseObject setMTU;
ManagementBaseObject newMTU = objMO.GetMethodParameters("SetMTU");
Int32 test = 9216;
newMTU["MTU"] = test;
setMTU = objMO.InvokeMethod("SetMTU", newMTU, null);
}
}
}
The correct NIC ID is given. Other WMI Operations succeed but we stuck on that one with error Message:
System.Management.ManagementException: "Die Methode ist ungültig. "
(System.Management.ManagementException: "The Method is invalid.")
We have also tried to use "test" as string or uint32 (because the microsoft docs says it's an uint32),also:
newMTU["MTU"] = new (u)int[] { MTU };
but it doesnt work either.
Meanwhile we don't have any ideas how to fix the problem.
I am grateful for every idea.
Thanks for your help and have a good day,
Alex
Edit:
Code to read the MTU should be (you have to tell this part a NetworkID so you don't read the Value of every NIC, you find this in your registry, but you should be able to delete the if part):
ManagementClass objMC = new ManagementClass("Win32_NetworkAdapterConfiguration");
ManagementObjectCollection objMOC = objMC.GetInstances();
foreach (ManagementObject objMO in objMOC)
{
if (networkadapterID == (String)objMO["SettingID"])
{
MessageBox.Show(Convert.ToString(objMO["MTU"]) + ": " + Convert.ToString(objMO["SettingID"]));
}
}

So far we didn't get the problem solved but we now check if the OS is Windows 10 and we will start a PowerShell task with this command:
Get-NetAdapterAdvancedProperty -Name 'NICName' -DisplayName 'Jumbo-Rahmen' | Set-NetAdapterAdvancedProperty -RegistryValue 'MTUsize';
Jumbo-Rahmen should be JumboPacket on an English OS
If the OS is not Windows 10 the User will be asked to change the MTU manually

Unable to format a drive using ManagementObject from Non-Admin account

I have below code to format a USB drive. Code works fine with Admin account, but if I run the exe using Non Admin account, it returns 3 (Access Denied).
I want to format a drive in Non-Admin mode. Any help?
I visited this link https://social.msdn.microsoft.com/Forums/en-US/1e192745-9d58-4507-93f0-ceacbc0cde96/wmi-win32volume-format-method-returns-access-denied?forum=windowsgeneraldevelopmentissues , but no help
ManagementObjectSearcher searcher = new ManagementObjectSearcher(#"select * from Win32_Volume WHERE DriveLetter = '" + driveLetter + "'");
foreach (ManagementObject vi in searcher.Get())
{
var result = vi.InvokeMethod("Format", new object[] { fileSystem, quickFormat, clusterSize, label, enableCompression });
if (Convert.ToInt32(result) != 0)
{
throw new Exception("Error while formating drive");
}
}

Have you tried "Right Click> Compatibility> Change All User Settings> Run As Administrator"?
If this is the solution, you can do this with the code.
Probably, this question - answer, can answer your problem.
How do I force my .NET application to run as administrator?

MSFT_Volume Format Method, in WinPE

I hope there may be some insight and maybe help in relation to my query.
I am trying to write the last module to a customised Windows Recovery environment, based on WinPE for Windows 10.
The solution currently utilises DiskPart to create the Disk Partitions (inline with Microsoft advice here), with the change of not providing for the WinRE partition.
After a fair amount of research and tinkering with a project found on MSDN, I managed to get a working project that would clear/partition and format a disk using WMI (MSFT_Disk,MSFT_Partition & MSFT_Volume). That is fully working within Windows 10 on a virtual disk of 15 GiB size.
When I tried it in WinPE (as this will be the OS that it will be used on), it failed on multiple elements, even though the Methods were reported as there). (MSFT_Disk::Clear, MSFT_Volume::Format).
On inspecting the result of my work in DiskPart, I noticed that even though MSFT_Volume::Format had a return value of 2 "Unknown Error" it had actually formatted the data partition (NTFS, ClusterSize 4096). However, when when the Format method is applied to the ESP (FAT32, cluster size 512/1024/4096)it fails fully, with the FileSystem still being reported as RAW, but will apply an AccessPath. "ExtendedStatus" only returns Error 2 (unless I am not accessing it correctly).
Has anyone else had this problem and managed to rectify the problem? Multiple Google searches have thrown out the idea that there maybe a WMI error, but within PowerShell, not as coded in C#/C++. Below are some code snippets and screen shots:
Creating the Partition:
try
{
parameters = disk.GetMethodParameters("CreatePartition");
}
catch (Exception e)
{
Console.WriteLine("Exception in Line 88: " + e.Message);
}
if (PartitionType != "PRIMARY")
{
FillInvocationParameters(parameters, new Dictionary<string, object> { { "Size", _partitionSize.ToString() },
{ "AssignDriveLetter", false },
{ "GpTType", _partitionType} });
}
else
{
FillInvocationParameters(parameters, new Dictionary<string, object> { { "UseMaximumSize", true },
{ "AssignDriveLetter", false },
{ "GpTType", _partitionType} });
}
try
{
res = disk.InvokeMethod("CreatePartition", parameters, null);
objresult = res["ReturnValue"]; //write error handliong routine for the objResult.
Int32.TryParse(objresult.ToString(), out intRes);
}
catch (Exception e)
{
Console.WriteLine("Exception in Line 146: " + e.Message);
ErrorID = Marshal.GetLastWin32Error();
return false;
}
if (intRes != 0)
{
Console.Write("CreatePartition {0} failed with the result: {1} Line 111.", PartitionType, objresult.ToString());
Console.ReadKey();
ErrorID = Marshal.GetLastWin32Error();
return false;
}
//this is the format point for EFI System Disk.. MSFTPARTITIONtoVOLUME MSFT VOLUME::FORMAT
Console.Write($"{PartitionType} Partition has been created\r\n");
string partition = ((ManagementBaseObject)res["CreatedPartition"])["__PATH"] as string;
var MSFT_Partition = new ManagementObject(#"root\Microsoft\Windows\Storage", partition, null);
var partitionIndex = partition.IndexOf(#"ObjectId=\");
partition = partition.Substring(partitionIndex);
partitionIndex = partition.IndexOf(#"}\\");
partitionIndex = partitionIndex + 1;
partition = partition.Substring(0, partitionIndex);
var strMSFTPartition = partition;
partition = partition.Replace("root", "ROOT");
var partitionGuid = MSFT_Partition["Guid"] as string;
Console.WriteLine("Line 138: New Partition GUID: " + partitionGuid);
Parameters is declared as:
ManagementBaseObject parameters = null;
FillInvokationParamters:
private static void FillInvocationParameters(ManagementBaseObject InvocationParameters, IDictionary<string, object> parameters)
{
foreach (var pair in parameters)
{
string stringParamValue;
var managementObjectParam = pair.Value as ManagementObject;
var arrayParam = pair.Value as string;
if (managementObjectParam != null)
{
stringParamValue = managementObjectParam.GetText(TextFormat.CimDtd20);
InvocationParameters[pair.Key] = stringParamValue;
}
else if (arrayParam != null)
InvocationParameters[pair.Key] = arrayParam;
else if (pair.Value != null)
{
stringParamValue = pair.Value.ToString();
InvocationParameters[pair.Key] = stringParamValue;
}
}
}
And the Format Method call:
try
{
Console.Write("Line 174: Attempting to Format with MSFT_Volume::Format FileSystem {0}, Label: {1}, ClusterSize: {2}\r\n", _FileSystem, _VolumeLable, _allocationUnit.ToString());
parameters = MSFTVolume.GetMethodParameters("Format");
FillInvocationParameters(parameters, new Dictionary<string, object>{ { "FileSystem", _FileSystem },
{ "AllocationUnitSize", _allocationUnit },
{ "FileSystemLabel", _VolumeLable },
{ "Full", false} });
res = MSFTVolume.InvokeMethod("Format", parameters, null);
objresult = res["ReturnValue"];
Int32.TryParse(objresult.ToString(), out intReslt);
}
catch (Exception e)
{
Console.WriteLine("Line: 189 The Following error occured while attmpeting to Format the Volume: " + e.Message);
ErrorID = Marshal.GetLastWin32Error();
return false;
}
For the ESP the following applies:
switch(PartitionType)
{
case "EFI":
{
_partitionType = "{c12a7328-f81f-11d2-ba4b-00a0c93ec93b}";
_partitionSize = 260 /*bytes*/ *1024 /*Kilobytes*/ *1024 /*Megabytes*/;
_FileSystem = "FAT32";
_allocationUnit = 1024;
_VolumeLable = "System";
break;
}
}
Screenshots of my console app and diskpart results:
Format Disk Console output
DiskPart Results
Any help/insights will be gratefully appreciated.
Regards
Richie

Note that there are several builds of the ADK for newer builds of Windows 10...be sure to use the latest and greatest. We had issues similar to yours with both dism.exe and diskpart.exe. At one point, (on early win 10 adks) we got dism.exe and diskpart.exe from an 8.1 adk. Hacky as heck, but you gotta do what you gotta do :-)
Update:
Checked with the support group...turns out, I got the versions mixed up. The very first win 10 adk had a working dism and diskpart (adk for windows 10 1503)...and we've been unable to use newer ones from within PE since...and so we're still deploying a new winpe from new ADK - but copying in the diskpart and dism saved off from the 1503 adk. We never deployed 8.1 versions - my bad. Still - hacky as all git out.
Best we can recollect, it only presented a problem in one side of the house...either BIOS+MBR or UEFI+GPT...but none of us remember which.

How to get process owner name in 64 bit OS in C#

How do I determine the owner of a process in C#?
public string GetProcessOwner(int processId)
{
string query = "Select * From Win32_Process Where ProcessID = " + processId;
ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
ManagementObjectCollection processList = searcher.Get();
foreach (ManagementObject obj in processList)
{
string[] argList = new string[] { string.Empty, string.Empty };
int returnVal = Convert.ToInt32(obj.InvokeMethod("GetOwner", argList));
if (returnVal == 0)
{
// return DOMAIN\user
return argList[1] + "\\" + argList[0];
}
}
return "NO OWNER";
}
I detailed studied and implemented the code as given above. This code works fine but only gets the owner names of those processes which are 32 bits. The method return "no owner" for 64 bits processes.
Please help me, how I can get the processes owner names for both 32 bit processes and 64 bit processes.

No, that code works "fine". It also works when your code is 32bit but the target process is 64bit, so no issue here as well.
Possible reasons why you could get "NO OWNER":
You are trying to get the owner for which you have no permission (e.g. you are running as non-privileged user, but trying to get the owner of a privileged one).
You are trying to get the owner of a pseudo process (e.g. "System", with PID 4, or "System Idle Process" with PID 0).
BTW, also services have owners (regarding #weismat comment).

C# - WMI query of multiple servers too slow

I'm trying to return all enabled features from a remote win2008 server. And that wasn't any problem at all really - as long as I knew what exactly to query.
The problems I'm having however is when my query doesn't find a result, it takes forever to validate if the feature is installed or not - sometimes up to 2 minutes. (Not good enough when querying over 600 nodes).
The following code is the fastest way I've found of doing it, however as I said: it takes forever to return false:
public bool serverFeatureEnabled(string machineName, Win32_ServerFeature_ID id)
{
ManagementClass serviceClass = new ManagementClass("Win32_ServerFeature");
string strScope = string.Format(#"\\{0}\root\cimv2", machineName);
ConnectionOptions conOpt = new ConnectionOptions();
serviceClass.Scope = new ManagementScope(strScope, conOpt);
foreach (ManagementObject obj in serviceClass.GetInstances())
{
if ((UInt32)obj["ID"] == (uint)id)
{
return true;
}
}
return false;
}
Does anyone have a better idea of doing this, I don't mind if it not using WMI queries at all.
All I want to do is to speed it up a bit really.
I hope I made some sense!
Any help is appreciated.
Edit:
I have tried to "directly select required feature from server features with ManagementObjectSearcher class" as proposed by Sergrey V.
It did speed up the return of the first false, however it takes around 14 sec to finish, that all adds upp to 140 minutes of all the servers queried in the cluster.
Edit 2:
I tried to run tests against Win32_ServerFeature using WBEMTEST (Windows Management Instrumentation Tester), the connection to a remote computer seems to be the problem - running the test against one of the remote computers takes about 12 seconds to connect and around 2 seconds to return the data.
So the solution proposed by Sergrey V seems to be the fastest solution for WMI queries so far.

Don't run the action in series. I don't know if WMI has a bottleneck internally but the most obvious optimisation is to run the entire thing in Parallel.

Try to directly select required feature from server features with ManagementObjectSearcher class:
string serverName = "serverName";
string className = "Win32_ServerFeature";
string propertyName = "ID";
int propertyValue = 144;
string query = string.Format("SELECT * FROM {0} WHERE {1} = {2}", className, propertyName, propertyValue);
ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);
string scopePath = string.Format(#"\\{0}\root\cimv2", serverName);
searcher.Scope = new ManagementScope(string.Format(scopePath));
ManagementObjectCollection mCollection = searcher.Get();
bool featureEnabled = mCollection.Count > 0;

So here is what I ended up doing:
First of all as proposed by M Afifi I started a new task for each node in a list.
The WMI queries are then being executed parallel using 'Task.Factory.StartNew()'.
(using System.Threading.Tasks;)
The full execution of all nodes in the list takes now about 12 sec!
referenceList.connectionNodes().ForEach(x =>
{
var genericTask = Task.Factory.StartNew(() =>
{
regkeyFactory.testParallelExecution(x);
});
});
Thank you guys for the help!

Faster way is to scan all in one, i've made an HWID class using ManagementClass and it takes only 0,07s to get the unique hardware id of the machine