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+
+# Powershell script to upgrade a PowerShell 2.0 system to PowerShell 3.0
+# based on http://occasionalutility.blogspot.com/2013/11/everyday-powershell-part-7-powershell.html
+#
+# some Ansible modules that may use Powershell 3 features, so systems may need
+# to be upgraded.  This may be used by a sample playbook.  Refer to the windows
+# documentation on docs.ansible.com for details.
+#
+# - hosts: windows
+#   tasks:
+#     - script: upgrade_to_ps3.ps1
+
+# Get version of OS
+
+# 6.0 is 2008
+# 6.1 is 2008 R2
+# 6.2 is 2012
+# 6.3 is 2012 R2
+
+
+if ($PSVersionTable.psversion.Major -ge 3) {
+    Write-Output "Powershell 3 Installed already; You don't need this"
+    Exit
+}
+
+$powershellpath = "C:\powershell"
+
+function download-file {
+    param ([string]$path, [string]$local)
+    $client = new-object system.net.WebClient
+    $client.Headers.Add("user-agent", "PowerShell")
+    $client.downloadfile($path, $local)
+}
+
+if (!(test-path $powershellpath)) {
+    New-Item -ItemType directory -Path $powershellpath
+}
+
+
+# .NET Framework 4.0 is necessary.
+
+#if (($PSVersionTable.CLRVersion.Major) -lt 2)
+#{
+#    $DownloadUrl = "http://download.microsoft.com/download/B/A/4/BA4A7E71-2906-4B2D-A0E1-80CF16844F5F/dotNetFx45_Full_x86_x64.exe"
+#    $FileName = $DownLoadUrl.Split('/')[-1]
+#    download-file $downloadurl "$powershellpath\$filename"
+#    ."$powershellpath\$filename" /quiet /norestart
+#}
+
+#You may need to reboot after the .NET install if so just run the script again.
+
+# If the Operating System is above 6.2, then you already have PowerShell Version > 3
+if ([Environment]::OSVersion.Version.Major -gt 6) {
+    Write-Output "OS is new; upgrade not needed."
+    Exit
+}
+
+
+$osminor = [environment]::OSVersion.Version.Minor
+
+$architecture = $ENV:PROCESSOR_ARCHITECTURE
+
+if ($architecture -eq "AMD64") {
+    $architecture = "x64"
+}
+else {
+    $architecture = "x86"
+}
+
+if ($osminor -eq 1) {
+    $DownloadUrl = "http://download.microsoft.com/download/E/7/6/E76850B8-DA6E-4FF5-8CCE-A24FC513FD16/Windows6.1-KB2506143-" + $architecture + ".msu"
+}
+elseif ($osminor -eq 0) {
+    $DownloadUrl = "http://download.microsoft.com/download/E/7/6/E76850B8-DA6E-4FF5-8CCE-A24FC513FD16/Windows6.0-KB2506146-" + $architecture + ".msu"
+}
+else {
+    # Nothing to do; In theory this point will never be reached.
+    Exit
+}
+
+$FileName = $DownLoadUrl.Split('/')[-1]
+download-file $downloadurl "$powershellpath\$filename"
+
+Start-Process -FilePath "$powershellpath\$filename" -ArgumentList /quiet