The interactive installer now walks Welcome -> Destination Folder ->
Ready -> progress -> Completed (from #79). Destination Folder is WiX's
InstallDirDlg: Program Files\LightCraft by default, Change... browses,
and WixUIValidatePath refuses a folder that can't be used.
The chosen folder is written to HKLM\Software\LightCraft\InstallFolder
and read back (into PREVIOUSINSTALLFOLDER, then INSTALLFOLDER after
AppSearch unless given on the command line), so a major upgrade stays in
the user's folder instead of moving back to Program Files. Silent and
passive installs show no dialogs and take INSTALLFOLDER=....
packaging-lint fails if lightcraft.wxs loses the folder page, the
remembered folder or the completion page's launch action.
Tested with wix 5.0.2 (x64, arm64, x86 build) and msiexec /qn: upgrade
from 0.4.0 stays in Program Files; a custom INSTALLFOLDER install, an
upgrade without it (stays), an upgrade with another INSTALLFOLDER (moves
there), and uninstall (files, folder and registry value removed).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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