Convert VBS Script to List WMI Class Names to Powershell

Question

Basically I'd like to use Powershell to dump a list of all available classes in the root\cimv2 namespace. I have a vbscript which accomplishes the task:

Set objWMIService = _ 
   GetObject("winmgmts:{impersonationLevel=impersonate}root\cimv2")

Set colClasses = objWMIService.SubClassesOf

For Each objClass In colClasses
If Left(objClass.Path_.Class,6) = "Win32_" Then
   WScript.Echo objClass.Path_.Class
End If
Next

I've been able to get powershell to retrieve the list, but I can't seem to figure out how to get it to Write-Host the names. This is where I'm at now:

$WMIService = Get-WmiObject -Namespace root\cimv2 -List
$aClasses = $WMIService.SubClassesOf
foreach ($Class in $aClasses) {
    Write-Host $Class.Path_.Class
}

Powershell dumps a long list of nothing, so I know it's enumerated something. I've tried all sorts of $Class.x and haven't hit the magic one yet. Does anyone know?

Answer 1

Something similar to:

$WMIService = Get-WmiObject -Namespace root\cimv2 -List
$WMIService | where { $_.Name -like "Win32_*" } | foreach { $_.Name }

Will get you what you're looking for, I think.