I was running VirtualRouter on Windows 7 64-bit. It was working fine.
Suddenly it stopped working. Message: "Can not manage Virtual Router. The service is not running."
Funny guys. The service IS running. No amount of restarting, stopping and starting, rebooting or shouting at the screen helps. It's completely buggered.
I see tons of people having the same problem, and allmost as many people posting their stupid non-working solution with a broad smile, claiming that it solves the problem. And allmost as many people answering that no, it doesn't help.
Bottom line here is: your software is seriously flawed in Windows 7 (64-bit), and you need to either start offering some support for it or consider laying the project to rest.