like I said, your mileage may vary.

If it worked like; can't play the game I am already playing, that would make sense since I only own the permission to use one copy of the software at any time.

But for me in my position it's pretty useless. I don't want to play other peoples games, check my library gaming is my passion and if I want to check a game I will either buy it or get a demo. Since I game a lot more than any of my family members, they can almost never use my library.

It doesn't matter what DRM game, if I am playing any game from my library, and am online which is pretty much absolute, no family member can play any other game from my library.

Just thought it might be the reason it appears not to work for the OP, since it seems to catch quite a few people out.