I thought of this recently when I was setting up a test computer. I started up my LabVIEW project file and opened up my host VI only to find that I had some broken wires... DOH! After looking over MAX and googling a few error codes, I found that the test machine I had didn't have RT installed. That's when it hit me, wouldn't it be great if the VI would have recognized that I was trying to connect to a cRIO chassis and gave me a little pop up telling me what software I was missing and where to get it? Sure would have made my day easier.