Hey guys, I'm looking for some support trying to resolve this issue. We have a Windows 2003 Server that's our domain controller. We've had an issue twice where once every minute a critical error for EventID 2019 would appear. It would appear for a few hours, and then wind up bringing the server down. I've gone on EventID.net trying to figure out how to resolve this issue. One of the things that it's suggesting is to use perfmon and determine what is using the nonpaged pool. The guide on using that though is cryptic to me, I'll be honest. It says to keep an eye on each application that is using the nonpaged pool... but how? Sure, I can bring up the nonpaged allocation counter on perfmon, but I have no idea of knowing what is using it. Can someone assist me in figuring this out and being able to fix this issue, before the server goes down again?