Connect with us

Hi, what are you looking for?


How to tell which w3wp.exe worker process belongs to what Microsoft IIS application pool

Have you ever had an IIS worker process (w3wp.exe) that was taking up a lot of memory and wanted to know exactly which application pool it was tied to? 

Run this script located at C:\WINDOWS\system32 from command prompt:

cscript iisapp.vbs

This will tell you you the process ID of each worker process as well as the application pool ID it is running under.  This can help troubleshoot exactly which website or application is causing the memory spike.

Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

You May Also Like


Today I would like to go over proper URL redirection when using SSL but first I would like to preface this by describing what...

Citrix Workspace

You can use FIDO2 hardware security keys plugged into your physical desktop over the Citrix HDX remoting protocol for use with virtualized Windows Desktop...

Exchange 2003

A useful Exchange 2003 guide I wrote for a friend’s blog originally but I am posting it here on mine now for your viewing...


In a worst case scenario and all your web servers have failed, what do you do? You could have a standby group of servers... began in 2008 as a way for me to give back to the IT community. This website features the latest news and how-to's on enterprise mobility, security, virtualization, cloud architecture, and other technologies I work with. This website has evolved over time to become a go-to reference hub for these technologies. It receives hundreds of thousands of unique visitors from all over the world each month. More details on the About Me page.
Copyright © 2008-2023