Querying count of TCP Connections for a given process in Powershell

It seems the class to do this is MSFT_NetTransportConnection.

However I cannot query this class via Get-WmiObject:

C:\Users\Justin Dearing> Get-WmiObject MSFT_NetTransportConnection
Get-WmiObject : Invalid class "MSFT_NetTransportConnection"
At line:1 char:1
+ Get-WmiObject MSFT_NetTransportConnection
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidType: (:) [Get-WmiObject], ManagementException
    + FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetWmiObjectCommand

C:\Users\Justin Dearing> Get-WmiObject MSFT_NetTransportConnection  -Namespace "root/StandardCimv2"
Get-WmiObject : Not supported
At line:1 char:1
+ Get-WmiObject MSFT_NetTransportConnection  -Namespace "root/StandardC ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Get-WmiObject], ManagementException
    + FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetWmiObjectCommand

C:\Users\Justin Dearing> Get-WmiObject MSFT_NetTransportConnection  -Namespace "fff"
Get-WmiObject : Invalid namespace "fff"
At line:1 char:1
+ Get-WmiObject MSFT_NetTransportConnection  -Namespace "fff"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Get-WmiObject], ManagementException
    + FullyQualifiedErrorId : GetWMIManagementException,Microsoft.PowerShell.Commands.GetWmiObjectCommand

What am I doing wrong?

Solution

Can the MSFT_NetTcpConnection class be suitable?

Get-WmiObject -Namespace 'ROOT/StandardCimv2' -ClassName MSFT_NetTCPConnection |
    Group-Object OwningProcess

Sort Process with Most Connections

You can also use Sort-Object to sort the list of processes with the most connections. This makes it easier to visually discover which processes have the most connections.

Get-CimInstance -Namespace root/standardcimv2 -ClassName MSFT_NetTCPConnection | 
  Group-Object -Property OwningProcess | 
  Sort-Object -Property Count