:'( The URL registry key STILL won't activate even after I selected run as administrator. The funny thing thing is that the download helper box is open and Idle, which I presume means the installation is recognized online by Auran as valid.
Could the problem with compatbility with microsoft.NETFramework? When I installed Trainz, a popup said that there were compatibility issues with that, but I could'nt find a solution online (via the link in the message). I installed it anyways.