Using MSlink failing when try to map folder in host to windows container -powershell console

I created a test folder(AgentData) in side D drive in host machine (windows server2019) and I mapped that using below command ,

docker run -it `
  -v D:\DockerTest:C:\AgentData `
  mcr.microsoft.com/windows/servercore:ltsc2019 `
  powershell


PS C:\> mklink /D D:\ C:\AgentData
mklink : The term 'mklink' is not recognized as the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ mklink /D D:\ C:\AgentData
+ ~~~~~~
    + CategoryInfo          : ObjectNotFound: (mklink:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

Please suggest

MSlink may fail due to the permission issues. Try running PowerShell as admin and check the folder sharing settings.

I am running container with admin, below is the output from inside container

PS C:\> whoami
user manager\containeradministrator

I just copied the error message to Google search. I found this

So it is a cmd.exe built-in command. Not usable from powershell..

Note: The previous post was probably AI generated.