List SQL Server Instances with Powershell remote registry search

Question : I want to list the SQL Server Instances on a remote server. How can I do this with a Powershell script?

I've alread read List SQL Server Instances using Powershell and Get-ItemProperty   for local registry search

Answer:  Remote registry access  with Powershell is about using  a) the [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey Object b) the OpenRemoteBaseKey Method  c) the GetValueNames method d) the OpenSubKey method

This is a simple example

 $server = "myServer"
 $keypath = 'Software\Microsoft\Microsoft SQL Server\Instance Names\SQL'
 $roottype = "LocalMachine"
 $rootkey = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey($roottype,$server)

  
 $rootkey = $rootkey.OpenSubKey($keypath )
 Foreach($instance in $rootkey.GetValueNames()){$instance}

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