Why popups for safe applications?

Are you sure this DLL file has been on your PC before you switched into Clean PC Mode and it isn’t modified or recreated while you start/use VirtualPC? I scanned my PC and I did not find this DLL file on it although I had installed Virtual PC. What reminds me about an issue I reported a while ago which in fact wasn’t the issue at all but intended behaviour of Defense+. One of developers explained it, here is a quote and the link to original thread.