MSDN Blogs: Query the active worker process information in IIS 7.X using Powershell

# Ensure to import the WebAdministration module

Import-ModuleWebAdministration

# Declare the variables

$server="localhost"

$search="*"

$wmiQuery=[wmisearcher]"SELECT * FROM __Namespace where NAME like 'WebAdministration' or NAME like 'MicrosoftIISv2'"

$wmiQuery.Scope.Path ="\\"+$server+"\root"

$WebNamespace=$wmiQuery.Get()

# Checking if the the server has IIS installed

if($WebNamespace-like'*WebAdministration*')

{

    "IIS  found on $server"

    $WPlist=Get-WmiObject-NameSpace'root\WebAdministration'-class'WorkerProcess'-ComputerName'LocalHost'

    # Loop through the list of active IIS Worker Processes w3wp.exe and fetch the PID, AppPool Name and the startTime

    forEach ($WPin$WPlist)

    {

        if ($WP.apppoolname -like$search)

        {

           write-host"Found:""PID:"$WP.processid  "AppPool_Name:"$WP.apppoolname
             (get-process-ID$WP.processid|selectstarttime)

        }

    }

}

Else

{

   write-host"WARNING: IIS not detected."

}