Moving dotnet installation to Autounattend.xml

answer_files/2008_r2/Autounattend.xml

@@ -259,6 +259,11 @@
                     <CommandLine>cmd.exe /c C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -File a:\install_netfx.ps1 -AutoStart</CommandLine>
                     <Description>Install .NET 4.0</Description>
                     <Order>27</Order>
+                </SynchronousCommand>
+                <SynchronousCommand wcm:action="add">
+                    <CommandLine>cmd.exe /c C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -File a:\install-dotnet-451.ps1 -AutoStart</CommandLine>
+                    <Order>98</Order>
+                    <Description>Install .NET 4.5.1</Description>
                 </SynchronousCommand>
                  <!--WITHOUT WINDOWS UPDATES -->
                 <SynchronousCommand wcm:action="add">

scripts/installs/install_dotnet45.ps1

@@ -0,0 +1,23 @@
+$Logfile = "C:\Windows\Temp\dotnet-install.log"
+function LogWrite {
+   Param ([string]$logstring)
+   $now = Get-Date -format s
+   Add-Content $Logfile -value "$now $logstring"
+   Write-Host $logstring
+}
+ 
+LogWrite "Downloading dotNet 4.5.1"
+try {
+    (New-Object System.Net.WebClient).DownloadFile('http://download.microsoft.com/download/1/6/7/167F0D79-9317-48AE-AEDB-17120579F8E2/NDP451-KB2858728-x86-x64-AllOS-ENU.exe', 'C:\Windows\Temp\dotnet.exe')
+} catch {
+    LogWrite $_.Exception | Format-List -force
+    LogWrite "Failed to download file."
+}
+
+LogWrite "Starting installation process..."
+try {
+    Start-Process -FilePath "C:\Windows\Temp\dotnet.exe" -ArgumentList "/I /q /norestart" -Wait -PassThru
+} catch {
+    LogWrite $_.Exception | Format-List -force
+    LogWrite "Exception during install process."
+}

windows_2008_r2.json

@@ -21,6 +21,7 @@
         "./scripts/configs/win-updates.ps1",
         "./scripts/installs/openssh.ps1",
         "./scripts/installs/install_netfx.ps1",
+        "./scripts/installs/install_dotnet45.ps1",
         "./resources/certs/oracle-cert.cer",
         "./resources/certs/gdig2.crt",
         "./resources/certs/comodorsadomainvalidationsecureserverca.crt",
@@ -64,6 +65,7 @@
         "./scripts/configs/win-updates.ps1",
         "./scripts/installs/openssh.ps1",
         "./scripts/installs/install_netfx.ps1",
+        "./scripts/installs/install_dotnet45.ps1",
         "./resources/certs/oracle-cert.cer",
         "./resources/certs/gdig2.crt",
         "./resources/certs/comodorsadomainvalidationsecureserverca.crt",