[DominikD]

This must be new (maybe related to tons of experienced devs moving to other teams in recent years?) When I worked there around 2008 it was very rare for people to break Windows builds. Some teams were better than others but in general breakage was rare and often came from dev build system using previously generatrd artifacts vs nightlies building everything. Windows is amazingly complex. Comparing its codebase and process to smaller projects just doesn't make sense.

[DrPizza]

One of the (many) reasons I've heard they had to abandon Longhorn was that apparently it was essentially unbuildable. The build was broken so much of the time that they gave up and started over.