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Yann GEFFROTIN edited this page Aug 21, 2025 · 2 revisions

Table of Contents

Installing / Upgrading

Prerequisites

Installing

Grab the latest release from the Releases page and follow the installer instructions to install FlashDevelop and selected tools on you computer. After the installation, FlashDevelop automaticly configures the selected tools or you can manually configure the tools as described in the Configuration page. If you have problems, you can ask for help from the community forums.

Detailled Installing

To see Flash content on Windows 11, you need :

  1. Adobe Flash player 32 standalone:
2. A swf (in the bin directory of the project your working on).

To do Flash development, you need an IDE :

  1. Download the last version of FlashDevelop (version 5.3.3 on exe): https://github.com/fdorg/flashdevelop/tree/development/Releases
  2. Install it. (If error messages, install also the missing softwares)
    1. Message 1 (Not resolvable): “You should install Flash Player (ActiveX for IE) before installing FlashDevelop.”
    2. Only supported if you need a flash on a browser on windows 10.
    3. Message 2 (mandatory): “You should install 32-bit Java Runtime (1.6 or later) before installing FlashDevelop.”
    4. Install jre-8u441-windows-x64 if on Win11.
    5. Catch latest version at : https://www.java.com/en/download/manual.jsp
  3. Others softwares requierements:
    1. Message 3 (mandatory): Download the latest Microsoft .NET Framework 3.5.
  4. Open & Build a project with FlashDevelop :
    1. Message 4 (mandatory): “This project doesn’t have a valid SDK defined. Please check the SDK tab in the project properties.”
    2. I need “Apache Flex – SDK installer for Applications Developer” to find and install. https://flex.apache.org/installer.html
    3. Message 5: “Unable to validate the downloaded version of adobe AIR. Please install the latest version of adobe AIR from http://www.adobe.com/go/getair, then retry installing this application.” I need Adobe Air Runtimes for windows. https://airsdk.harman.com
    4. In FlashDevelop, go to Settings > SDK > Add > Location > C:/flex
    5. If build successful, you win !
    6. Check: Go to “Flash Player 32 standalone”, open “3DgameEngine.swf”(or whatever the project name is).
  5. Play !

Clean install

Clean install removes all traces of the program and reinstalls it. Here's how to do it:

  • Backup your syntax files, snippets, file templates and project templates (if customized *).
  • Uninstall FlashDevelop with settings, this is an option in the uninstaller.
  • Install the new FlashDevelop release in normal mode to your program files.
  • Restore your syntax files, snippets, file templates and project templates (if customized *).
(*) Check the notes to customizers on the release notes for files that may need special attention.

Upgrading

Upgrading happens just by installing the new version on top of the old version. Previous versions before the FlashDevelop 4.0.0 Beta release needs to be uninstalled fully. If something seems broken, you may need to completely remove old configuration files in your user local application data. See Configuration page for locating these files.

Silent install

You can install FlashDevelop in silent mode without prompts and with default settings with a commandline flag: /S.

Installer details

Installation options

  • Desktop Shortcut: Adds a FlashDevelop shortcut to the desktop.
  • Quick Launch Item: Adds a FlashDevelop shortcut to the Quick Launch Toolbar.
  • Language:
    • No changes: No changes to language, will run in previously selected language or defaults to English.
    • English: Changes the selected language to English.
    • Chinese: Changes the selected language to Chinese.
    • Japanese: Changes the selected language to Japanese.
    • German: Changes the selected language to German.
    • Basque: Changes the selected language to Basque.
  • Advanced:
    • Start Menu Group: Add a start menu group for the default FlashDevelop shortcuts.
    • Registry Modifications: Adds the uninstall information to the Add/Remove Programs control panel in Windows in order to cleanly uninstall the program later, if desired. It will also associate FlashDevelop-specific file types with FlashDevelop (so you can open them by double-clicking), but it will not change the associations for any Flash native filetypes such as .fla or .as.
    • Standalone/Portable: Installs a flag file (".local") to the application directory to instruct FlashDevelop use only local setting files.
    • Multi Instance Mode: Installs a flag file (".multi") to the application directory to run FlashDevelop in multi instance mode. WARNING: Settings across instances do not work properly.

Associated file types

  • Project Files (*.fdp, *.fdproj, *.hxproj, *.lsproj, *.as2proj, *.as3proj)
  • Documentation Project Files (*.docproj)
  • UI Theme Files (*.fdi)
  • Argument Files (*.fda)
  • Template Files (*.fdt)
  • Binary Files (*.fdb)
  • Layout Files (*.fdl)
  • Macro Files (*.fdm)
  • Zip Files (*.fdz)
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