Microsoft CTO Admits 1990s Win32 API Still Powers Windows 11

Windows’ clinging to Win32 mirrors how banks still run 1960s COBOL—code longevity driven by massive software ecosystems and backward-compatibility promises. Since Windows 95, Microsoft has layered new shells (WinRT 2012, UWP 2015, WinUI 3 2021) atop the same kernel APIs rather than risk breaking billions of apps—a path-dependence pattern dating back to IBM’s mainframes. The newly exposed Win32 reliance, the 32-bit overflow bug, and the need for self-healing updates all reflect a system straddling modern security demands (TPM, Secure Boot) while hauling decades of technical debt. On a 100-year horizon this moment matters less for the quote itself than for what it signals: mainstream consumer OSs may remain incremental, compatibility-first platforms, much like Unix derivatives did for half a century, unless a clean-slate computing paradigm (quantum, cloud-only, AR) finally severs the past.