diff --git a/build/AzurePipelinesTemplates/MUX-BuildDevProject-Steps.yml b/build/AzurePipelinesTemplates/MUX-BuildDevProject-Steps.yml
index 7f73cd7980..7176635f21 100644
--- a/build/AzurePipelinesTemplates/MUX-BuildDevProject-Steps.yml
+++ b/build/AzurePipelinesTemplates/MUX-BuildDevProject-Steps.yml
@@ -64,3 +64,4 @@ steps:
   - template: MUX-MakeFrameworkPackages-Steps.yml
     parameters:
       buildOutputDir: $(buildOutputDir)
+      signOutput: ${{parameters.signOutput}}
diff --git a/build/AzurePipelinesTemplates/MUX-MakeFrameworkPackages-Steps.yml b/build/AzurePipelinesTemplates/MUX-MakeFrameworkPackages-Steps.yml
index 1abe9feb70..ffaca1823a 100644
--- a/build/AzurePipelinesTemplates/MUX-MakeFrameworkPackages-Steps.yml
+++ b/build/AzurePipelinesTemplates/MUX-MakeFrameworkPackages-Steps.yml
@@ -1,5 +1,6 @@
 parameters:
   buildOutputDir: '$(Build.SourcesDirectory)\Artifacts\drop'
+  signOutput: false
 
 steps:
   - powershell: |
@@ -25,3 +26,42 @@ steps:
         }
       }
     displayName: 'Make FrameworkPackages'
+
+  - ${{ if eq( parameters.signOutput, true) }}:
+    - task: EsrpCodeSigning@1
+      displayName: First Party StoreSign Framework Package
+      inputs:
+        ConnectedServiceName: WinUISigning
+        FolderPath: '${{ parameters.buildOutputDir }}\$(buildConfiguration)\$(buildPlatform)\FrameworkPackage'
+        Pattern: |
+          *.appx
+        signConfigType: 'inlineSignParams'
+        inlineOperation: >-
+          [
+              {
+                  "KeyCode" : "Dynamic",
+                  "CertTemplateName" : "WINMSAPP1ST",
+                  "CertSubjectName" : "CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
+                  "OperationCode" : "SigntoolSign",
+                  "Parameters" : {
+                      "OpusName" : "Microsoft",
+                      "OpusInfo" : "http://www.microsoft.com",
+                      "FileDigest" : "/fd \"SHA256\"",
+                      "TimeStamp" : "/tr \"http://rfc3161.gtm.corp.microsoft.com/TSS/HttpTspServer\" /td sha256"
+                  },
+                  "ToolName" : "sign",
+                  "ToolVersion" : "1.0"
+              },
+              {
+                  "KeyCode" : "Dynamic",
+                  "CertTemplateName" : "WINMSAPP1ST",
+                  "CertSubjectName" : "CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US",
+                  "OperationCode" : "SigntoolVerify",
+                  "Parameters" : {},
+                  "ToolName" : "sign",
+                  "ToolVersion" : "1.0"
+              }
+          ]
+        SessionTimeout: '60'
+        MaxConcurrency: '50'
+        MaxRetryAttempts: '5'
diff --git a/build/AzurePipelinesTemplates/MUX-PushCBSVpack-Job.yml b/build/AzurePipelinesTemplates/MUX-PushCBSVpack-Job.yml
index 9570e37329..55af9bb76a 100644
--- a/build/AzurePipelinesTemplates/MUX-PushCBSVpack-Job.yml
+++ b/build/AzurePipelinesTemplates/MUX-PushCBSVpack-Job.yml
@@ -38,6 +38,13 @@ jobs:
     failOnStderr: true
     # Note: This task sets the 'vpackversion' variable that is used below.
 
+  - task: PublishBuildArtifacts@1
+    displayName: Publish WinUIVpack Artifact
+    inputs:
+      PathtoPublish: $(System.ArtifactsDirectory)\drop\release\WinUIVpack
+      artifactName: WinUIVpack
+    # This artifact is not consumed by anyone, but it is useful for debugging purposes.
+
   - task: PublishBuildArtifacts@1
     displayName: Publish CBS Artifact
     inputs:
@@ -46,6 +53,13 @@ jobs:
     # This artifact is not consumed by anyone, but it is useful for debugging purposes.
 
   # Push the VPacks:
+  - task: PkgESVPack@12
+    displayName: 'Push VPack Microsoft.UI.Xaml'
+    inputs:
+      sourceDirectory: '$(System.ArtifactsDirectory)\drop\Release\WinUIVpack'
+      description: Microsoft.UI.Xaml
+      pushPkgName: Microsoft.UI.Xaml
+      version: $(vpackversion)
   - task: PkgESVPack@12
     displayName: 'Push VPack MicrosoftUIXamlInbox_x64'
     inputs:
diff --git a/build/CreateCBSVPack.ps1 b/build/CreateCBSVPack.ps1
index f2d82ce59e..0f4f199a62 100644
--- a/build/CreateCBSVPack.ps1
+++ b/build/CreateCBSVPack.ps1
@@ -69,7 +69,7 @@ if(!(Get-Command mdmerge -ErrorAction Ignore))
     Write-Error "Cannot find mdmerge. Make sure to run from a Developer Command Prompt."
     exit 1
 }
-
+$winuiVpackFolder = "$releaseFolder\WinUIVpack"
 $cbsFolder = "$releaseFolder\CBS"
 $winmdFolder = "$cbsFolder\winmd"
 $packagesDir = Join-Path $repoRoot "packages"
@@ -81,12 +81,19 @@ if (Test-Path $cbsFolder)
     Remove-Item -Path $cbsFolder -Force -Recurse| Out-Null
 }
 
+if (Test-Path $winuiVpackFolder)
+{
+    Write-Host "Deleting $winuiVpackFolder"
+    Remove-Item -Path $winuiVpackFolder -Force -Recurse| Out-Null
+}
+
 if (Test-Path $winmdReferencesDir)
 {
     Write-Host "Deleting $winmdReferencesDir"
     Remove-Item -Path $winmdReferencesDir -Force -Recurse| Out-Null
 }
 
+New-Item -Path "$winuiVpackFolder" -ItemType Directory | Out-Null
 New-Item -Path "$cbsFolder" -ItemType Directory | Out-Null
 New-Item -Path "$winmdFolder" -ItemType Directory | Out-Null
 New-Item -Path "$winmdReferencesDir" -ItemType Directory | Out-Null
@@ -112,6 +119,32 @@ foreach ($flavour in $buildFlavours)
     }  
 }
 
+# Create WinUI Vpack:
+foreach ($flavour in $buildFlavours) 
+{
+    $sourceFolder = "$releaseFolder\$flavour\FrameworkPackage"
+    $targetFolder = "$winuiVpackFolder\$flavour"
+
+    New-Item -Path "$targetFolder" -ItemType Directory | Out-Null
+
+    $search = "Microsoft.UI.Xaml.*.appx"
+    $found = Get-ChildItem $sourceFolder -Filter $search
+    if ($found.Length -eq 0)
+    {
+        Write-Error "Could not find '$search' in '$sourceFolder'"
+        Exit 1
+    }
+
+    $fileName = $found[0].Name
+    $sourcePathFull = $found[0].FullName
+    
+    $destPathFull = Join-Path $targetFolder $fileName
+
+    Write-Verbose "Copy item from '$sourcePathFull' to '$destPathFull' "
+    Copy-Item $sourcePathFull $destPathFull
+}
+
+# Create CBS Vpacks:
 foreach ($flavour in $buildFlavours) 
 {
     $sourceFolder = "$releaseFolder\$flavour"