I presented at NI-Week 2009 on a couple of paradigms for extending the LabVIEW Error Handling Core (as inspired by all your posting here). Here are the resources from that presentation (I didn't screencapture the examples, but you should be able to see what I was talking about from the video and the code that's included): NIWeek Session Video Presentation Slides.pdf Presentation Code.zip It's a hot topic, and I know a lot of people have strong opinions on it, so let's discuss!