diff --git a/docs/GROWING_FILES_QUICKSTART.md b/docs/GROWING_FILES_QUICKSTART.md
index 40a8a4a..2e9c02a 100644
--- a/docs/GROWING_FILES_QUICKSTART.md
+++ b/docs/GROWING_FILES_QUICKSTART.md
@@ -45,7 +45,7 @@ Building locally (requires Windows for the `.exe`, any OS for the `.zxp`):
 ```
 cd services/premiere-plugin/build
 npm install
-pwsh -File build-all.ps1     # or: node build-zxp.mjs
+powershell -File build-all.ps1   # or: node build-zxp.mjs
 ```
 
 The Windows installer takes care of `PlayerDebugMode`. If you installed the
diff --git a/services/premiere-plugin/QUICK_START.md b/services/premiere-plugin/QUICK_START.md
index e20c913..44bfd4e 100644
--- a/services/premiere-plugin/QUICK_START.md
+++ b/services/premiere-plugin/QUICK_START.md
@@ -30,7 +30,7 @@ sets `PlayerDebugMode=1` for CSXS 8..13, and offers to remove any legacy
 ```
 cd services/premiere-plugin/build
 npm install
-pwsh -File build-all.ps1
+powershell -File build-all.ps1
 ```
 
 See [`build/README.md`](build/README.md).
diff --git a/services/premiere-plugin/build/README.md b/services/premiere-plugin/build/README.md
index e8e0001..c5ce8cc 100644
--- a/services/premiere-plugin/build/README.md
+++ b/services/premiere-plugin/build/README.md
@@ -30,7 +30,7 @@ winget install --id JRSoftware.InnoSetup
 ```
 cd services/premiere-plugin/build
 npm install
-pwsh -File build-all.ps1
+powershell -File build-all.ps1
 ```
 
 Artifacts land in `services/premiere-plugin/build/dist/`.
@@ -39,7 +39,7 @@ To build just one:
 
 ```
 node build-zxp.mjs                          # cross-platform .zxp
-pwsh -File build-installer.ps1              # Windows .exe (needs ISCC.exe)
+powershell -File build-installer.ps1         # Windows .exe (needs ISCC.exe)
 ```
 
 ## Signing cert (.zxp)
diff --git a/services/premiere-plugin/build/build-installer.ps1 b/services/premiere-plugin/build/build-installer.ps1
index 1175757..9079273 100644
--- a/services/premiere-plugin/build/build-installer.ps1
+++ b/services/premiere-plugin/build/build-installer.ps1
@@ -12,20 +12,30 @@ $manifestPath = Join-Path $PSScriptRoot '..\CSXS\manifest.xml'
 if (-not (Test-Path $manifestPath)) {
     throw "Manifest not found at $manifestPath"
 }
-$manifestXml = [xml](Get-Content -Raw -Path $manifestPath)
-$version = $manifestXml.ExtensionManifest.ExtensionBundleVersion
-if (-not $version) {
+# Regex over XML because the manifest's <Resources> comment contains '--'
+# (the --enable-nodejs/--mixed-context CEF flags), which is illegal per the
+# XML spec — .NET's strict parser rejects the doc even though Adobe CEP
+# tolerates it.
+$manifestRaw = Get-Content -Raw -Path $manifestPath
+if ($manifestRaw -notmatch '<ExtensionBundleVersion>([^<]+)</ExtensionBundleVersion>') {
     throw 'Could not read <ExtensionBundleVersion> from manifest.xml'
 }
+$version = $Matches[1].Trim()
 Write-Host "Dragonflight Premiere panel - Windows installer build v$version"
 
 $iscc = Get-Command 'ISCC.exe' -ErrorAction SilentlyContinue
 if (-not $iscc) {
-    # Common install location if not on PATH.
-    $fallback = "${env:ProgramFiles(x86)}\Inno Setup 6\ISCC.exe"
-    if (Test-Path $fallback) {
-        $iscc = Get-Command $fallback
-    } else {
+    # Common Inno Setup 6 install locations. winget user-scope drops it in
+    # %LOCALAPPDATA%\Programs; machine-wide installs land in Program Files.
+    $fallbacks = @(
+        "${env:LOCALAPPDATA}\Programs\Inno Setup 6\ISCC.exe",
+        "${env:ProgramFiles(x86)}\Inno Setup 6\ISCC.exe",
+        "${env:ProgramFiles}\Inno Setup 6\ISCC.exe"
+    )
+    foreach ($p in $fallbacks) {
+        if (Test-Path $p) { $iscc = Get-Command $p; break }
+    }
+    if (-not $iscc) {
         throw "ISCC.exe not found. Install Inno Setup 6: winget install JRSoftware.InnoSetup"
     }
 }
diff --git a/services/premiere-plugin/build/package.json b/services/premiere-plugin/build/package.json
index 579ef1e..a25d397 100644
--- a/services/premiere-plugin/build/package.json
+++ b/services/premiere-plugin/build/package.json
@@ -6,8 +6,8 @@
   "type": "module",
   "scripts": {
     "build:zxp": "node build-zxp.mjs",
-    "build:exe": "pwsh -NoProfile -ExecutionPolicy Bypass -File build-installer.ps1",
-    "build": "pwsh -NoProfile -ExecutionPolicy Bypass -File build-all.ps1"
+    "build:exe": "powershell -NoProfile -ExecutionPolicy Bypass -File build-installer.ps1",
+    "build": "powershell -NoProfile -ExecutionPolicy Bypass -File build-all.ps1"
   },
   "devDependencies": {
     "zxp-sign-cmd": "^2.0.0"