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Inno Setup Unpacker


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This package was approved as a trusted package on 6/4/2019.

Inno Setup is a popular program for making software installations. Unfortunately, there is no official unpacker - the only method of getting the files out of the self-extracting executable is to run it. One piece of software that addresses this issue is Sergei Wanin's InstallExplorer, a plug-in for the FAR Manager that unpacks several types of installations, including Inno Setup (IS). But since it is not updated in a timely fashion, and so does not support the latest IS most of the time, this program was born.

The advantages over InstallExplorer are:

  • Innounp is open source and based on IS source. Therefore, it is more likely to support future IS versions.
  • It recovers portions of the installation script (.iss file), including the registry changes and the compiled Innerfuse/RemObjects Pascal Script, if available.

To install Inno Setup Unpacker, run the following command from the command line or from PowerShell:

C:\> choco install innounp

To upgrade Inno Setup Unpacker, run the following command from the command line or from PowerShell:

C:\> choco upgrade innounp


  • tools\chocolateyInstall.ps1 Show
    try {
      $packageName = "innounp"
      $url = " 0.48/innounp048.rar/download"
      $checksum = '59e80a6f46b2de48d5cd929479adf0784a2a2580cd6ea67ea2a9560eb8082ba4'
      $checksumType = 'sha256'
      $toolsDir = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
      $rarFile = "$toolsDir\innounp.rar"
      Get-ChocolateyWebFile "$packageName" "$rarFile" "$url" -Checksum "$checksum" -ChecksumType "$checksumType" 
      if (Test-Path "${Env:ProgramFiles(x86)}\7-zip") {
        $cmd7z = "${Env:ProgramFiles(x86)}\7-zip\7z.exe"
      }	elseif (Test-Path "$Env:ProgramFiles\7-zip") {
        $cmd7z = "$Env:ProgramFiles\7-zip\7z.exe"
      } else {
        Write-Warning "7-zip was not found. Please install 7-zip."
      Start-Process -FilePath "$cmd7z" -Wait -WorkingDirectory "$toolsDir" -ArgumentList "e $rarFile"
      Remove-Item "$rarFile"
    } catch {
      throw $_.Exception

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.


Package Maintainer(s)

Software Author(s)

  • QuickeneR
  • Ariman




Release Notes

Version History

Version Downloads Last updated Status
Inno Setup Unpacker 0.47 324 Friday, July 27, 2018 approved
Inno Setup Unpacker 0.46 745 Tuesday, April 12, 2016 approved
Inno Setup Unpacker 0.45 265 Monday, January 4, 2016 approved
Inno Setup Unpacker 0.44 204 Tuesday, November 24, 2015 approved
Inno Setup Unpacker 0.43 223 Tuesday, August 11, 2015 approved
Inno Setup Unpacker 0.42 266 Saturday, May 30, 2015 approved
Inno Setup Unpacker 0.41 240 Thursday, March 19, 2015 approved
Inno Setup Unpacker 0.40 249 Thursday, February 5, 2015 approved

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  • Tell us what you love about the package or Inno Setup Unpacker, or tell us what needs improvement.
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