diff --git a/AppHandling/Extract-AppFileToFolder.ps1 b/AppHandling/Extract-AppFileToFolder.ps1
index 6ae43f7b0..448b9bcb0 100644
--- a/AppHandling/Extract-AppFileToFolder.ps1
+++ b/AppHandling/Extract-AppFileToFolder.ps1
@@ -29,7 +29,7 @@ function Extract-AppFileToFolder {
 
 $telemetryScope = InitTelemetryScope -name $MyInvocation.InvocationName -parameterValues $PSBoundParameters -includeParameters @()
 try {
-
+    Set-StrictMode -Off
     if ($appFolder -eq "") {
         if ($openFolder) {
             $generateAppJson = $true
@@ -112,7 +112,6 @@ try {
     }
 
     if ($generateAppJson) {
-        #Set-StrictMode -Off
         $manifest = [xml](Get-Content -path (Join-Path $appFolder "NavxManifest.xml") -Encoding UTF8)
         $runtimeStr = "$($manifest.Package.App.Attributes | Where-Object { $_.name -eq "Runtime" } | % { $_.Value } )"
         if ($runtimeStr) {
@@ -171,19 +170,49 @@ try {
         }
         else {
             $manifest.Package.ChildNodes | Where-Object { $_.name -eq "ResourceExposurePolicy" } | % { 
-                $xmlResExp = [ordered]@{}
                 $resExp = [ordered]@{}
-                "allowDebugging", "allowDownloadingSource", "includeSourceInSymbolFile" | % {
+                "allowDebugging", "allowDownloadingSource", "includeSourceInSymbolFile","applyToDevExtension" | % {
                     $prop = $_
-                    if ($xmlResExp.PSObject.Properties.Name -eq $prop) {
+                    if ($manifest.Package.ResourceExposurePolicy.Attributes | Where-Object { $_.name -eq $prop } | % { $_.Value -eq "true" }) {
                         $resExp += @{
-                            "$prop" = $xmlResExp."$prop" -eq "true"
+                            "$prop" = $true
                         }
                     }
                 }
                 $appJson += @{ "resourceExposurePolicy" = $resExp }
             }
-       
+        }
+        if ($runtime -ge [System.Version]"12.0")  {
+            $manifest.Package.ChildNodes | Where-Object { $_.name -eq "Source" } | % { 
+                $node = $_
+                $ht = [ordered]@{}
+                "repositoryUrl", "commit" | % {
+                    $prop = $_
+                    if ($node) {
+                        $node.Attributes | Where-Object { $_.name -eq $prop } | % {
+                            $ht += @{
+                                "$prop" = $_.Value
+                            }
+                        }
+                    }
+                }
+                $appJson += @{ "source" = $ht }
+            }
+            $manifest.Package.ChildNodes | Where-Object { $_.name -eq "Build" } | % { 
+                $node = $_
+                $ht = [ordered]@{}
+                "by", "url" | % {
+                    $prop = $_
+                    if ($node) {
+                        $node.Attributes | Where-Object { $_.name -eq $prop } | % {
+                            $ht += @{
+                                "$prop" = $_.Value
+                            }
+                        }
+                    }
+                }
+                $appJson += @{ "build" = $ht }
+            }
         }
         if ($runtime -ge [System.Version]"5.0")  {
             $appInsightsKey = $manifest.Package.App.Attributes | Where-Object { $_.name -eq "applicationInsightsKey" } | % { $_.Value } 
@@ -287,7 +316,6 @@ try {
             }
         }
         $appJson | convertTo-json | Set-Content -Path (Join-Path $appFolder "app.json") -Encoding UTF8
-        Set-StrictMode -Version 2.0
     }
 
     if ($openFolder) {
@@ -299,6 +327,7 @@ catch {
     throw
 }
 finally {
+    Set-StrictMode -Version 2.0
     TrackTrace -telemetryScope $telemetryScope
 }
 }
diff --git a/HelperFunctions.ps1 b/HelperFunctions.ps1
index 00cf323d4..6bd55aa58 100644
--- a/HelperFunctions.ps1
+++ b/HelperFunctions.ps1
@@ -543,33 +543,36 @@ function CopyAppFilesToFolder {
             }
         }
         elseif (Test-Path $appFile -PathType Leaf) {
-            if ([string]::new([char[]](Get-Content $appFile @byteEncodingParam -TotalCount 2)) -eq "PK") {
-                $tmpFolder = Join-Path ([System.IO.Path]::GetTempPath()) ([Guid]::NewGuid().ToString())
-                $copied = $false
-                try {
-                    if ($appFile -notlike "*.zip") {
-                        $orgAppFile = $appFile
-                        $appFile = Join-Path ([System.IO.Path]::GetTempPath()) "$([System.IO.Path]::GetFileName($orgAppFile)).zip"
-                        Copy-Item $orgAppFile $appFile
-                        $copied = $true
+            Get-ChildItem $appFile | ForEach-Object {
+                $appFile = $_.FullName
+                if ([string]::new([char[]](Get-Content $appFile @byteEncodingParam -TotalCount 2)) -eq "PK") {
+                    $tmpFolder = Join-Path ([System.IO.Path]::GetTempPath()) ([Guid]::NewGuid().ToString())
+                    $copied = $false
+                    try {
+                        if ($appFile -notlike "*.zip") {
+                            $orgAppFile = $appFile
+                            $appFile = Join-Path ([System.IO.Path]::GetTempPath()) "$([System.IO.Path]::GetFileName($orgAppFile)).zip"
+                            Copy-Item $orgAppFile $appFile
+                            $copied = $true
+                        }
+                        Expand-Archive $appfile -DestinationPath $tmpFolder -Force
+                        Get-ChildItem -Path $tmpFolder -Recurse | Where-Object { $_.Name -like "*.app" -or $_.Name -like "*.zip" } | % {
+                            CopyAppFilesToFolder -appFile $_.FullName -folder $folder
+                        }
                     }
-                    Expand-Archive $appfile -DestinationPath $tmpFolder -Force
-                    Get-ChildItem -Path $tmpFolder -Recurse | Where-Object { $_.Name -like "*.app" -or $_.Name -like "*.zip" } | % {
-                        CopyAppFilesToFolder -appFile $_.FullName -folder $folder
+                    finally {
+                        Remove-Item -Path $tmpFolder -Recurse -Force
+                        if ($copied) { Remove-Item -Path $appFile -Force }
                     }
                 }
-                finally {
-                    Remove-Item -Path $tmpFolder -Recurse -Force
-                    if ($copied) { Remove-Item -Path $appFile -Force }
-                }
-            }
-            else {
-                $destFile = Join-Path $folder "$([System.IO.Path]::GetFileNameWithoutExtension($appFile)).app"
-                if (Test-Path $destFile) {
-                    Write-Host -ForegroundColor Yellow "::WARNING::$([System.IO.Path]::GetFileName($destFile)) already exists, it looks like you have multiple app files with the same name. App filenames must be unique."
+                else {
+                    $destFile = Join-Path $folder "$([System.IO.Path]::GetFileNameWithoutExtension($appFile)).app"
+                    if (Test-Path $destFile) {
+                        Write-Host -ForegroundColor Yellow "::WARNING::$([System.IO.Path]::GetFileName($destFile)) already exists, it looks like you have multiple app files with the same name. App filenames must be unique."
+                    }
+                    Copy-Item -Path $appFile -Destination $destFile -Force
+                    $destFile
                 }
-                Copy-Item -Path $appFile -Destination $destFile -Force
-                $destFile
             }
         }
         else {