Windows installer (Inno Setup)

Step 8.1 of the Windows installers plan: a parameterized Inno Setup script that installs the same flat publish layout as the release zip, under a per-user directory, so the in-app upgrader can still overlay files via ZipExtractor.exe.

Prerequisites

.NET SDK (same version as the repo; see build.yml).
Inno Setup 6 with ISCC.exe on PATH or in a default install location.

Quick build (publish + installer)

From PowerShell, repo root or this folder:

.\Scripts\Windows\Build-WindowsInstaller.ps1 -Version 13.4.1 -Ui Avalonia -Architecture x64

Outputs:

Publish tree: bin\ (repo root)
Installer: bin\Libation.13.4.1-windows-chardonnay-x64-setup.exe

Variants

UI	`-Ui`	`-Architecture`	Install folder	Output prefix
Chardonnay x64	`Avalonia`	`x64`	`%LocalAppData%\Libation`	`Libation.*`
Chardonnay arm64	`Avalonia`	`arm64`	`%LocalAppData%\Libation`	`Libation.*`
Classic x64	`WinForms`	`x64` (default)	`%LocalAppData%\Libation-Classic`	`Libation-Classic.*-setup.exe`

Examples:

.\Scripts\Windows\Build-WindowsInstaller.ps1 -Version 13.4.1 -Ui WinForms
.\Scripts\Windows\Build-WindowsInstaller.ps1 -Version 13.4.1 -Ui Avalonia -Architecture arm64

Reuse an existing publish folder

.\Scripts\Windows\Build-WindowsInstaller.ps1 -Version 13.4.1 -Ui Avalonia -BinDir C:\path\to\bin -SkipPublish

BinDir must already match CI layout (including ZipExtractor.exe, without standalone WindowsConfigApp.exe).

Manual ISCC (without the helper script)

After publish and cleanup (remove WindowsConfigApp.exe, WindowsConfigApp.runtimeconfig.json, WindowsConfigApp.deps.json from bin), from Scripts\Windows:

"C:\Program Files (x86)\Inno Setup 6\ISCC.exe" Libation.iss ^
  /DMyVersion=13.4.1 ^
  /DMyPrefix= ^
  /DMyReleaseName=chardonnay ^
  /DMyArchitecture=x64 ^
  /DInstallFolderName=Libation ^
  /DAppName=Libation ^
  /DOutputBaseFilename=Libation.13.4.1-windows-chardonnay-x64-setup ^
  /DSourceDir=C:\Dev\_rmcrackan\Libation\bin ^
  /DOutputDir=C:\Dev\_rmcrackan\Libation\bin ^
  /DArchitecturesAllowed=x64compatible

Classic x64: use MyReleaseName=classic and matching OutputBaseFilename (Libation-Classic.{version}-windows-classic-x64-setup). Install folder and display name are set in Libation.iss. GitHub zip assets use Libation-Classic.{version}-windows-classic-x64.zip; .releaseindex.json also accepts legacy Classic-Libation.* zips on older releases.

arm64: set MyArchitecture=arm64 and ArchitecturesAllowed=arm64.

Installer behavior

Per-user install (PrivilegesRequired=lowest, default dir under {localappdata}).
Shortcuts target {app}\Libation.exe (required for upgrade path detection).
Does not create appsettings.json or Libation Files; same as zip install.
Includes full publish output so ZipExtractor.exe remains for in-app updates.
Settings -> Apps: shows Libation (Chardonnay) or Libation (Classic) with version in DisplayVersion (Inno at install; synced after in-app zip upgrades via WindowsUninstallRegistrySync); icon from SetupIconFile / UninstallDisplayIcon (Scripts/Windows/libation.ico and {app}\Libation.exe).

Next plan step (8.2)

Install via *-setup.exe, run the app, then verify an older release can upgrade in-app using the existing zip-based upgrader.

CI wiring (build-windows.yml) is step 8.3.

Files in this folder

File	Purpose
`Libation.iss`	Parameterized Inno Setup script
`libation.ico`	Setup/uninstaller icon (copied from Avalonia assets)
`Build-WindowsInstaller.ps1`	Local publish + ISCC helper
`README.md`	This document

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