This morning I tried to go to one of the Microsoft virtual labs. You can find them here. This site is a great resource. Anyway, when I click on the "Launch Virtual Lab" button everything ran fine until just after the "Checking ActiveX Control" part at the end when I received a message saying "Unable to register person". I went back top the launch screen and clicked "View System Requirements:
then clicked on Firewall:
The start-up of the lab launched just fine!