Insightful WMI Snippets

Get all the namespaces

function Get-CimNamespaces ($ns="root") {

   Get-CimInstance -ClassName __NAMESPACE -Namespace $ns |

   foreach {

       Get-CimNamespaces $("$ns\" + $_.Name)

   }

   Get-CimInstance -ClassName __NAMESPACE -Namespace $ns

}

Get-CimNamespaces 

Get-CimNamespaces | select Name, @{n='NameSpace';e={$_.CimSystemProperties.NameSpace}}, CimClass

View all the namespaces in a hierachy

function View-CimNamespacesHierarchy ($ns="root", $c="|") {

   Get-CimInstance -ClassName __NAMESPACE -Namespace $ns |

   foreach {

       Write-Host $c $_.Name

       View-CimNamespacesHierarchy $("$ns\" + $_.Name) $c"-"

   }

}

View-CimNamespacesHierarchy

Get all the WMI providers on the system

function Get-CimProvider ($ns="root") {

   Get-CimInstance -ClassName __NAMESPACE -Namespace $ns |

   foreach {

       Get-CimProvider $("$ns\" + $_.Name)

   }

   Get-CimInstance -NameSpace $ns -Class __Win32Provider

}

Get-CimProvider

Get-CimProvider | select Name, @{n='NameSpace';e={$_.CimSystemProperties.NameSpace}}, CimClass

Get-CimProvider | Measure-Object

=> 188

Get all the provider registrations. A provider can be registered multiple times w/ different registration types.

function Get-CimProviderRegistration ($ns="root") {

   Get-CimInstance -ClassName __NAMESPACE -Namespace $ns |

   foreach {

       Get-CimProviderRegistration $("$ns\" + $_.Name)

   }

   Get-CimInstance -NameSpace $ns -Class __ProviderRegistration

}

Get-CimProviderRegistration

Get-CimProviderRegistration | Measure-Object

=> 303

Get-CimProviderRegistration | Group-Object {$_.CimSystemProperties.ClassName} | select count, name

=>

Count Name                              

----- ----                              

   11 __EventConsumerProviderRegistration

  135 __InstanceProviderRegistration    

    2 __PropertyProviderRegistration    

  115 __MethodProviderRegistration      

   34 __EventProviderRegistration       

    6 __ClassProviderRegistration