Tag
arm64
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Building a Windows on ARM Test Environment on a Mac: VMware Fusion + Windows 11 ARM64
The Japan Patent Office e-filing software is Windows-only, and the Mac build was discontinued — so there is no filing route from a Mac. I built a Windows 11 ARM64 environment on an Apple Silicon Mac with VMware Fusion instead. Fusion has been free (commercial use included) since November 2024, and the Windows 11 ARM64 ISO is available from Microsoft directly. This covers the biggest setup hurdle, getting past the Microsoft account requirement, plus the settings that make it a driver test bench (disabling Secure Boot, USB passthrough, snapshots), on the actual setup in use (Fusion 26.0.0 / M3 Max).
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Getting an x64-only Device Working on Windows on ARM: Writing a PC/SC Driver for the RC-S380
Windows on ARM emulates x64 applications, but drivers are excluded from emulation. The SONY PaSoRi RC-S380 NFC reader has an x64-only vendor driver, so I wrote an ARM64-native PC/SC driver for it: a UMDF2 virtual reader plus a Python relay. This is a field report from a thinly documented area. It covers the workaround for the WDK's missing MSBuild integration, an undocumented mandatory attribute called SCARD_ATTR_CHANNEL_ID, and a cache that faked success after USB disconnect. Source is published under MIT.
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