Notices: This section not yet converted to new layout. Download stats are rolling back out.




Downloads of v


Last update

This is not the latest version of Win flex-bison available.

Win flex-bison

Package test results are passing.

Private CDN cached downloads available for licensed customers. Never experience 404 breakages again! Learn more...

This package was approved by moderator flcdrg on 9/16/2016.

flex - The Fast Lexical Analyzer ( and bison - GNU parser generator (

To install Win flex-bison, run the following command from the command line or from PowerShell:

C:\> choco install winflexbison --version

To upgrade Win flex-bison, run the following command from the command line or from PowerShell:

C:\> choco upgrade winflexbison --version


  • tools\chocolateyInstall.ps1 Show
    # download and unpack a zip file
    Install-ChocolateyZipPackage `
      -PackageName "winflexbison" `
      -Url "" `
      -Checksum "5F55D7E3C72723A6162FE9B7613220127E3B79D4F267394B602E684B3B218306" `
      -ChecksumType "sha256" `
      -UnzipLocation "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"

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.


This package has no dependencies.

Package Maintainer(s)

Software Author(s)

  • Alex Zhondin (in addition to original authors of flex and bison)


Version History

Version Downloads Last updated Status
Win flex-bison 261 Saturday, February 4, 2017 approved
Win flex-bison 291 Friday, January 27, 2017 approved
Win flex-bison 1452 Monday, September 12, 2016 approved
Win flex-bison 504 Thursday, August 18, 2016 approved
Win flex-bison 3893 Monday, July 14, 2014 approved
Win flex-bison 573 Friday, January 3, 2014 approved

Discussion for the Win flex-bison Package

Ground rules:

  • This discussion is only about Win flex-bison and the Win flex-bison package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
  • The maintainers of this Chocolatey Package will be notified about new comments that are posted to this Disqus thread, however, it is NOT a guarantee that you will get a response. If you do not hear back from the maintainers after posting a message below, please follow up by using the link on the left side of this page or follow this link to contact maintainers. If you still hear nothing back, please follow the package triage process.
  • Tell us what you love about the package or Win flex-bison, or tell us what needs improvement.
  • Share your experiences with the package, or extra configuration or gotchas that you've found.
  • If you use a url, the comment will be flagged for moderation until you've been whitelisted. Disqus moderated comments are approved on a weekly schedule if not sooner. It could take between 1-5 days for your comment to show up.

comments powered by Disqus uses cookies to enhance the user experience of the site.