It's a temporary restraining order. It obviously affects Microsoft's products and its customers. It would be equivalent to say, blocking a phone switch that was

It's a temporary restraining order. It obviously affects Microsoft's products and its customers. It would be equivalent to say, blocking a phone switch that was misbehaving and calling you continuously causing a denial of service attack. That Microsoft customers are suffering more than Microsoft itself and that No-IP appeared to be in denial seems to support the temporary restraining order -- No-IP, aware of such reports via blog posts, chooses to do nothing by asking for reports rather than investigating and stopping the behaviour themselves.