That lets Microsoft break ABI on every release if they see fit. I thought the model was to install the runtimes globally, so you only have one copy of each vers

That lets Microsoft break ABI on every release if they see fit. I thought the model was to install the runtimes globally, so you only have one copy of each version, but you install whatever version a given program wants. So you end up with lots, all somewhat different to each other. It has different tradeoffs to the glibc model.