[Tireings]

Or it was just a team inside Microsoft and he thought "Microsoft" talked to him and saw already dollar signs?

Open source license is there for reasons, he can sue them if they did it wrong.

[cestith]

Generally a court likes for a plaintiff to try to resolve a dispute before suing. The author should contact the Peerd team at Microsoft and point out that they seem to have overlooked their obligations under the license. Only if they refuse to do anything would it be worth considering a lawsuit.