diff --git a/os/windows/winstore/prepare-manifests.ps1 b/os/windows/winstore/prepare-manifests.ps1
new file mode 100644
--- /dev/null
+++ b/os/windows/winstore/prepare-manifests.ps1
@@ -0,0 +1,42 @@
+[CmdletBinding()]
+[Alias()]
+Param
+(
+    # Output folder
+    [Parameter(Mandatory=$true, Position=0)]
+    $OutputFolder,
+
+    # Publisher ("CN=xyz")
+    [Parameter(Mandatory=$true, Position=1)]
+    $Publisher,
+
+    # IdentityName
+    [Parameter(Mandatory=$true, Position=2)]
+    $IdentityName,
+
+    # Version
+    [Parameter(Mandatory=$true, Position=3)]
+    $AppVersion
+)
+
+function Prepare-Manifest {
+    param (
+        $Architecture
+    )
+
+    (Get-Content "$($PSScriptRoot)\manifests\Package.appxmanifest").replace('$PUBLISHER$', $Publisher).replace('$IDENTITY_NAME$', $IdentityName).replace('$VERSION$', $AppVersion).replace('$ARCHITECTURE$', $Architecture) | Set-Content "$($OutputFolder)\Package-$($Architecture).appxmanifest"
+}
+
+# Prepare the application binary manifests
+Prepare-Manifest x86
+Prepare-Manifest x64
+Prepare-Manifest arm64
+
+# Prepare the assets package manifest
+(Get-Content "$($PSScriptRoot)\manifests\AssetsPackage.appxmanifest").replace('$PUBLISHER$', $Publisher).replace('$IDENTITY_NAME$', $IdentityName).replace('$VERSION$', $AppVersion) | Set-Content "$($OutputFolder)\AssetsPackage.appxmanifest"
+
+# Prepare the overall package manifest
+(Get-Content "$($PSScriptRoot)\manifests\Package.appxmanifest").replace('$PUBLISHER$', $Publisher).replace('$IDENTITY_NAME$', $IdentityName).replace('$VERSION$', $AppVersion).replace(' ProcessorArchitecture="$ARCHITECTURE$"', '') | Set-Content "$($OutputFolder)\Package.appxmanifest"
+
+# Copy the PackagingLayout XML file
+(Get-Content "$($PSScriptRoot)\manifests\PackagingLayout.xml") | Set-Content "$($OutputFolder)\PackagingLayout.xml"