In June 2017, Microsoft experianced the largest leak in their history, Over 32TB of Source code, tools, builds and documents were published on the internet. The source code was originally published on betaarchive before they took it down by request of microsofts lawyers and police. The 2 people responsable for the leak were arrested shortly after. I downloaded the source code before they took it down, and will link it here. [Hidden Content] You will notbe able to build this as it has dependancies that are not provided. But you can use it to reverse engineer windows and impliment some goodness into a virus.