Could you help? Whenever I run CKAN, it shows a pop-up and it shows if it can add a handler. I clicked no, and everything was fine and CKAN was running. But then the next day, I run it again and it shows the pop-up again. I clicked no, then nothing happened. Then, when I tried to run CKAN again, it shows that unhandled exception pop-up. I already have .NET 4.5 installed, so I don't know what's happening.