Update-VcRedist.ps1

<#
.SYNOPSIS
This function will download and install any missing VC++ Distributables
.EXAMPLE
Update-VcRedist -DownloadDirectory "C:\temp";
#>

function Update-VcRedist {
  [CmdletBinding()]
  param(
    [string][Parameter(mandatory = $false)] $DownloadDirectory = "$ENV:USERPROFILE\Downloads"
  )

  begin {
    ##we need to install a few things before we install any modules
    Install-PackageProvider -Name NuGet -Force;
    Install-Module -Name VcRedist -Force;
    Import-Module -Name VcRedist;
    $VcFolder = New-Item -Path "$DownloadDirectory\VcRedist" -ItemType Directory -Force;
  }

  process {
    # Install VC++ Redis, if it fails then the install needs to stop so we can fix it
    try {
      Get-VcList | Save-VcRedist -Path $VcFolder;
      $VcList = Get-VcList;
      Install-VcRedist -VcList $VcList -Path $VcFolder;
    } catch {
      Write-Host $_;
      Write-Error "There is a problem installing the required Visual Studio Redistributables" -ErrorAction Stop;
    }
  }

  end {
    #Sometimes VC++ 2013 is not installed via the above method - so ensuring it is installed
    Invoke-WebRequest -Uri "http://download.microsoft.com/download/0/5/6/056dcda9-d667-4e27-8001-8a0c6971d6b1/vcredist_x64.exe" -Verbose -UseBasicParsing -OutFile "$DownloadDirectory\vc2013.exe";
    Start-Process -FilePath "$DownloadDirectory\vc2013.exe" -ArgumentList "/install /passive";

    Write-Host "All Done!";
  }
}