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Raymond Chen1 min readintermediate

Why is there no Windows hot-patching support for other architectures like 32-bit ARM and MIPS?

Read on microsoft.com

Summary

Windows hot-patching supports x86 and 64-bit ARM, but not older architectures like MIPS because they predate the feature. 32-bit ARM lacks support because hot-patching is a Windows Server feature, and no 32-bit ARM Windows Server existed.

  • Architectures like MIPS, Alpha AXP, PowerPC, and SH-3 predate Windows hot-patching rules.
  • 32-bit ARM support was introduced to Windows after hot-patching existed.
  • Hot-patching is exclusively a Windows Server feature.
  • There was no Windows Server version released for 32-bit ARM.

This clarifies specific historical and product-line reasons behind Windows hot-patching architecture support for engineers interested in OS design decisions.

6/10
architecturekernelwindowshistoryoperating systemshot patching

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