Comment by kh9000

Not nearly often enough, because most veteran Windows deverlopers don't even know what segment heap is, or that they have a choice. VS code, for example, is still on NT Heap. It is heartbreaking how under-utilized and under-publicized segment heap is. Raymond Chen needs to make a public service announcement or something.

For the question of how to do "segment heap on globally, with a list of exceptions that are still on NT Heap", I believe the "Image File Execution Options" regkey takes precedence over the global one. And the IFEO one lets you explicitly opt out. If you read the whitepaper from Mark Yason's 2016 talk at black hat, they explain how to use these registry keys.