/ZW (Windows Runtime Compilation) | Microsoft Docs
https://docs.microsoft.com/en-us/cpp/build/reference/zw-windows-runtime-compilation
Aug 03, 2021 · Remarks. When you specify the /ZW option, the compiler supports these features: The required metadata files, namespaces, data types, and functions that your app requires to execute in the Windows Runtime. Automatic reference-counting of Windows Runtime objects, and automatic discarding of an object when its reference count goes to zero.
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