(ps -id (Get-IISAppPool -Name <name>).WorkerProcesses.ProcessId).StartTime
Get-WmiObject Win32_Process -Filter "name = 'w3wp.exe'" | Select-Object Name, @{"name"="ApplicationPool";expression={(($_).CommandLine).split('"')[1] }},@{"name"="Starttime";expression={$_.ConvertToDateTime($_.CreationDate)}}
$pool = Get-IISAppPool -Name <name>
$pool.recycle()
Import-Module -Force IISAdministration
(ps -id (Get-IISAppPool -Name <name>).WorkerProcesses.ProcessId).StartTime