So, after playing with this payload, I'm a little confused as to when it is safe to remove the drive. Lets say for example, I was wanting to compromise someone's machine. Well, I can't leave the drive in there for 20 minutes while it finishes every command. I noticed, netstat, and nmap take the longest to work. I'm still looking through how everything works. I think you can remove it before nmap finishes since that stores in the system folder.
Anyway, the vnc installation will probably not email you the ip of the victim if you don't set the email preferences in the send.bat file under VNCInstallfiles folder.