diff --git a/.github/workflows/build-and-sign.yml b/.github/workflows/build-and-sign.yml
index 6c0465cd..0fb892b1 100644
--- a/.github/workflows/build-and-sign.yml
+++ b/.github/workflows/build-and-sign.yml
@@ -7,6 +7,11 @@ jobs:
   windows:
     runs-on: windows-latest
     steps:
+      - name: Set up dotnet
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: "3.1.x"
+
       - name: Set up Node
         uses: actions/setup-node@v1
         with:
@@ -16,24 +21,37 @@ jobs:
         run: echo "NODE_OPTIONS=--max_old_space_size=4096" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
         shell: pwsh
 
-      - name: Setup dotnet
-        uses: actions/setup-dotnet@v1
-        with:
-          dotnet-version: "3.x"
-
       - name: Print environment
         run: |
           node --version
           npm --version
           dotnet --version
 
-          exit 1
+      - name: Install AST
+        shell: pwsh
+        run: |
+          cd $HOME
+
+          git clone https://github.com/vcsjones/AzureSignTool.git
+          cd AzureSignTool
+          $latest_head = $(git rev-parse HEAD)[0..9] -join ""
+          $latest_version = "0.0.0-g$latest_head"
+
+          Write-Host "--------"
+          Write-Host "git commit - $(git rev-parse HEAD)"
+          Write-Host "latest_head - $latest_head"
+          Write-Host "PACKAGE VERSION TO BUILD - $latest_version"
+          Write-Host "--------"
+
+          cd $HOME
 
       - name: Checkout repo
         uses: actions/checkout@v2
 
       - name: Load package version
-        run: ./.github/scripts/load-version.ps1
+        run: |
+          ./.github/scripts/load-version.ps1
+          exit 1
         shell: pwsh
 
       - name: Install Node dependencies