Home and Work installations still allowed with one license?

Many years ago I asked and was told that it was okay to install a single-license copy of Take Command on both my home and work machines, since I would never be using them at the same time. Is that still true?

I haven't had it on my work machine for a few years, but I decided to put it on there today. Unfortunately I got a message that all available licenses are in use so I was unable to register it. I'm wondering whether either the policy, or possibly the way the licenses are managed, have changed over the last few years.