Comment by pjmlp

Mostly because of internal politics, it was used in production for Bing.

> While never reaching commercial release, at one time Midori powered all of Microsoft’s natural language search service for the West Coast and Asia.

From https://www.microsoft.com/en-us/research/project/singularity...

Enjoy this recording of an internal presentation, while it is still available on YouTube,

https://www.youtube.com/watch?v=37WgsoZpf3k

Joe Duffy also did a few presentations, on one of them (too lazy to search for the exact moment), he mentions that even with Midori running in front of them, the Windows team was very sceptical of it,

"RustConf 2017 - Closing Keynote: Safe Systems Software and the Future of Computing by Joe Duffy"

https://www.youtube.com/watch?v=CuD7SCqHB7k

"Safe Systems Programming in C# and .NET"

https://www.infoq.com/presentations/csharp-systems-programmi...