Does UE4 / Swarm Require a "D" Drive?

I apologize if this reply shows up twice, the forum doesn’t seem to want to show the reply so I’m trying a new comment.

Anyway, I did not see the swarm agent running in either the TCPview or the Resource Monitor. I did see a process called “System” using port 8008 and I did not see any processes using the port 8009.

I have also tried 4.9 and the 4.11 preview. I have gotten the same issue on both.