Microsoft Windows did the same: https://devblogs.microsoft.com/oldnewthing/20041104-00/?p=37393 https://devblogs.microsoft.com/oldnewthing/20041104-00/?p=37...

Microsoft Windows did the same: https://devblogs.microsoft.com/oldnewthing/20041104-00/?p=37393 https://devblogs.microsoft.com/oldnewthing/20041104-00/?p=37... In later versions, heap memory handles were even implemented in Intel x86 hardware: https://devblogs.microsoft.com/oldnewthing/20041105-00/?p=37383 https://devblogs.microsoft.com/oldnewthing/20041105-00/?p=37...