Fix Windows PowerShell parsing on Server 2012: UTF-8 BOM scripts.

Chinese packaging scripts without BOM were misread as ANSI and failed at first-run.
Document that bundled Python 3.13+ needs Server 2016+ / Win10+.

Co-authored-by: Cursor <cursoragent@cursor.com>

packaging/README.md

@@ -21,6 +21,8 @@ This directory builds a Windows deliverable with:
 
 **Offline:** Setup ships portable PostgreSQL, `.venv` (when built with `-CreateVenv`), and WinSW. First-run uses `-NonInteractive -DbMode bundled` — **no GitHub/EDB download on the target PC**. Service install uses bundled WinSW (pass `-AllowDownload` only on a build/dev machine if the binary is missing). Auto-update still needs network later, and is unchecked by default.
 
+**OS:** Windows 10/11 or Windows Server **2016+** recommended. Packaging scripts are UTF-8 **with BOM** so Chinese UI works on Windows PowerShell 5.x. Bundled Python in current releases is **3.13+**, which does **not** support Windows Server 2012 R2 — use Server 2016+ or a newer desktop OS.
+
 ## Build (developer machine)
 
 Prerequisites: Python 3.11+, Node 20+, PowerShell, network (to download PG binaries once).

packaging/_common.ps1

@@ -1,4 +1,4 @@
-# Shared path helpers for Windows packaging scripts.
+# Shared path helpers for Windows packaging scripts.
 # Dot-source: . "$PSScriptRoot\_common.ps1"
 
 $ErrorActionPreference = "Stop"

packaging/build_release.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$Version = "",
     [string]$OutDir = "",
     [switch]$SkipWebBuild = $false,
@@ -80,6 +80,22 @@ $webOut = Join-Path $stage "web\dist"
 New-Item -ItemType Directory -Path (Split-Path $webOut -Parent) -Force | Out-Null
 Copy-Item -Path $dist -Destination $webOut -Recurse -Force
 
+function Write-Utf8BomFile {
+    param([string]$Path)
+    # Windows PowerShell 4/5 (Server 2012+) mis-parses UTF-8 without BOM when scripts contain CJK.
+    $utf8Bom = New-Object System.Text.UTF8Encoding $true
+    $bytes = [IO.File]::ReadAllBytes($Path)
+    $hasBom = ($bytes.Length -ge 3 -and $bytes[0] -eq 0xEF -and $bytes[1] -eq 0xBB -and $bytes[2] -eq 0xBF)
+    $text = if ($hasBom) {
+        [Text.Encoding]::UTF8.GetString($bytes, 3, $bytes.Length - 3)
+    } else {
+        [Text.Encoding]::UTF8.GetString($bytes)
+    }
+    $text = $text -replace "`r`n", "`n" -replace "`n", "`r`n"
+    if (-not $text.EndsWith("`r`n")) { $text += "`r`n" }
+    [IO.File]::WriteAllText($Path, $text, $utf8Bom)
+}
+
 $packOut = Join-Path $stage "packaging"
 New-Item -ItemType Directory -Path $packOut -Force | Out-Null
 Copy-Item -Path (Join-Path $PSScriptRoot "_common.ps1") -Destination $packOut -Force
@@ -87,13 +103,15 @@ foreach ($name in @(
         "download_postgres.ps1", "setup_first_run.ps1", "start_netx_app.ps1",
         "stop_netx_app.ps1", "update_netx.ps1", "check_update.ps1",
         "launch_shortcut.ps1", "netx_tray.ps1", "install_autostart.ps1", "install_service.ps1",
-
         "service_run.ps1", "install_update_task.ps1", "sign_release.ps1",
         "build_release.ps1", "publish_release.ps1", "publish_forgejo_release.ps1", "README.md", "manifest.example.json"
     )) {
     $src = Join-Path $PSScriptRoot $name
     if (Test-Path $src) { Copy-Item $src (Join-Path $packOut $name) -Force }
 }
+Get-ChildItem -Path $packOut -Filter *.ps1 -File | ForEach-Object { Write-Utf8BomFile -Path $_.FullName }
+Get-ChildItem -Path (Join-Path $stage "scripts") -Filter *.ps1 -File -ErrorAction SilentlyContinue |
+    ForEach-Object { Write-Utf8BomFile -Path $_.FullName }
 Copy-Item -Path (Join-Path $PSScriptRoot "config") -Destination (Join-Path $packOut "config") -Recurse -Force
 Copy-Item -Path (Join-Path $PSScriptRoot "installer") -Destination (Join-Path $packOut "installer") -Recurse -Force
 $assetsSrc = Join-Path $PSScriptRoot "assets"

packaging/check_update.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [string]$DataRoot = "",
     [string]$UpdateUrl = "",

packaging/download_postgres.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$Version = "16.4-1",
     [string]$OutDir = ""
 )

packaging/install_autostart.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [switch]$Remove = $false
 )

packaging/install_service.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [string]$DataRoot = "",
     [ValidateSet("winsw", "task")]

packaging/install_update_task.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [string]$DataRoot = "",
     [ValidateSet("Daily", "AtLogOn", "Hourly")]

packaging/installer/netx.iss

@@ -4,7 +4,7 @@
 
 #define MyAppName "NetX"
 #ifndef MyAppVersion
-  #define MyAppVersion "0.4.2"
+  #define MyAppVersion "0.4.3"
 #endif
 #define MyAppPublisher "NetX"
 #define MyAppURL "https://github.com/hansjone/netx"

packaging/launch_shortcut.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [ValidateSet("tray", "start", "stop", "setup", "update")]
     [string]$Action = "tray",
     [string]$ProgramRoot = "",

packaging/manifest.example.json

@@ -1,11 +1,11 @@
-{
+{
   "channel": "stable",
-  "latest": "0.4.2",
+  "latest": "0.4.3",
   "min_compatible": "0.3.0",
-  "notes_url": "https://github.com/hansjone/netx/releases/tag/v0.4.2",
+  "notes_url": "https://github.com/hansjone/netx/releases/tag/v0.4.3",
   "windows": {
-    "url": "https://github.com/hansjone/netx/releases/download/v0.4.2/NetX-0.4.2-win64.zip",
-    "setup_url": "https://github.com/hansjone/netx/releases/download/v0.4.2/NetX-Setup-0.4.2.exe",
+    "url": "https://github.com/hansjone/netx/releases/download/v0.4.3/NetX-0.4.3-win64.zip",
+    "setup_url": "https://github.com/hansjone/netx/releases/download/v0.4.3/NetX-Setup-0.4.3.exe",
     "sha256": "",
     "size": 0
   }

packaging/netx_tray.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [string]$DataRoot = "",
     [switch]$StartOnLaunch = $true,

packaging/publish_forgejo_release.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$Version = "",
     [string]$ForgejoBase = "http://10.0.0.131:3000",
     [string]$Owner = "hansjone",

packaging/publish_release.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$Version = "",
     [switch]$SkipBuild = $false,
     [switch]$SkipInstaller = $false,

packaging/service_run.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [string]$DataRoot = "",
     [int]$HealthFailLimit = 6,

packaging/setup_first_run.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [ValidateSet("bundled", "external", "")]
     [string]$DbMode = "",
     [string]$ProgramRoot = "",

packaging/sign_release.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [Parameter(Mandatory = $true)]
     [string[]]$Files,
     [string]$Thumbprint = "",

packaging/start_netx_app.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [string]$DataRoot = "",
     [switch]$SkipBrowser = $false,

packaging/stop_netx_app.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [string]$ProgramRoot = "",
     [string]$DataRoot = "",
     [switch]$KeepPostgres = $false

packaging/update_netx.ps1

@@ -1,4 +1,4 @@
-param(
+param(
     [Parameter(Mandatory = $true)]
     [string]$PackagePath,
     [string]$ProgramRoot = "",