The previous fix (heat.exe -platform x64) was wrong -- re-verified
live with the corrected build.bat confirmed actually deployed to the
VM (ruling out a stale-copy repeat of the earlier watcher bug),
identical ICE80 "32BitComponent uses 64BitDirectory" failures on every
single harvested component. WiX v3's heat.exe -platform flag only
affects registry-key harvesting, it never stamps Win64="yes" on
components.
Real fix: -arch x64 on candle.exe, the compile step, not the harvest
step -- sets the default Win64/Platform for every component compiled
from either source file (hand-authored product.wxs or harvested
files.wxs), the standard WiX v3 way to make a whole package
consistently 64-bit. Kept the harmless-but-insufficient heat.exe flag
too.
Not yet re-verified live -- next run should confirm a real .msi.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Dominik Roth
d66b881239