sebarnolds: and what when a new version of Windows is release where we can't install GFWL ?
That sucks of course (especially if the future incompatibility comes only from the DRM or client, and the game would otherwise work fine on the new system), but that is more about "future support" than retroactively removing one's ability to play the game. Even many GOG games will most probably not work in future Windows editions, or newer hardware and drivers.
I personally am more concerned about e.g. a client stopping supporting older OSes, retroactively removing your ability to play your purchased games on the system and OS for which you originally bought them. Especially since at the same time they don't guarantee that the affected games will run fine on newer OSes either, so depending on the game you may end up in a nasty catch-22 situation:
- You can't install and play the game on the older OS anymore because the client doesn't run on that OS _anymore_.
- On the other hand, while the client works on a newer OS, the game itself might have compatibility issues there.
=> suddenly you can't install and play the game anywhere anymore, even on the system/OS for which you bought it originally.