It is documented. When this whole windows 10 is spyware thing started, I started searching. The telemetry is exactly that. how many times an application is run. For how long? did it exit clean or with errors? etc... Microsoft has been giving speeches @ Dev conferences for a while now shopping this new feature set. Not a secret. it it a service called "Application Insights" https://www.visualstudio.com/e... Nothing secret, an apparently an advertised service. Another way to make money for Microsoft, not spyware for nefarious purposes.