$ErrorActionPreference = 'Stop';

$packageName = 'UrlRewrite'
$softwareName = 'IIS URL Rewrite Module 2'
$installerType = 'MSI' 

$silentArgs = '/qn /norestart'
$validExitCodes = @(0, 3010, 1605, 1614, 1641)
if ($installerType -ne 'MSI') {
  $validExitCodes = @(0)
}

$uninstalled = $false
$local_key     = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*'
$machine_key   = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*'
$machine_key6432 = 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'

$key = Get-ItemProperty -Path @($machine_key6432,$machine_key, $local_key) `
                        -ErrorAction SilentlyContinue `
         | ? { $_.DisplayName -like "$softwareName" }

if ($key.Count -eq 1) {
  $key | % { 
    $file = "$($_.UninstallString)"

    if ($installerType -eq 'MSI') {
      $silentArgs = "$($_.PSChildName) $silentArgs"

      $file = ''
    }

    Uninstall-ChocolateyPackage -PackageName $packageName `
                                -FileType $installerType `
                                -SilentArgs "$silentArgs" `
                                -ValidExitCodes $validExitCodes `
                                -File "$file"
  }
} elseif ($key.Count -eq 0) {
  Write-Warning "$packageName has already been uninstalled by other means."
} elseif ($key.Count -gt 1) {
  Write-Warning "$key.Count matches found!"
  Write-Warning "To prevent accidental data loss, no programs will be uninstalled."
  Write-Warning "Please alert package maintainer the following keys were matched:"
  $key | % {Write-Warning "- $_.DisplayName"}
}