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Participant
September 18, 2016
Answered

Online vs offline content: different behaviour of Flash

  • September 18, 2016
  • 2 replies
  • 754 views

I developed a software package for music education that uses Flash: some movies, some scripting. I sell this package as a download, but I also hosted it on a server for my students. Since the latest update of the Flash player the strange thing happens that the online version still works, but the offline version is dead. The interface loads, but the movies and the trainers that use scripting are dead. I use Firefox, since Safari and Flash don't seem to communicate at all. This might become a big problem for my offline customers. Any solutions?

<moderator edit: Minor edit to title to clarify issue>

    This topic has been closed for replies.
    Correct answer bartn76483860

    Hi everybody, a friend of mine found the problem: the latest Flash-plugin now has a preference I hadn't encountered before.

    Path: Apple menu > System prefs > Flash player > Advanced >  Trusted location settings.

    Adding the affiliated folder as a trusted location solved it. Thanks for your replies!

    2 replies

    _maria_
    Legend
    September 19, 2016
    bartn76483860AuthorCorrect answer
    Participant
    September 21, 2016

    Hi everybody, a friend of mine found the problem: the latest Flash-plugin now has a preference I hadn't encountered before.

    Path: Apple menu > System prefs > Flash player > Advanced >  Trusted location settings.

    Adding the affiliated folder as a trusted location solved it. Thanks for your replies!

    ivant43769692
    Participant
    September 18, 2016

    I had a similar problem, but for Win7 x32 Pro and Chrome ver. 53.0.2785.116. I recently bought some video-course. When I trying watch the video from seller site - it is played fine. But when I starting  the video lessons from DVD (iso image), with the html page links, I got a black screen. I could extract the files from DVD image manually, but these files are 150 pieces. And much easier to run them through links at the video-course DVD start html page.

    Cause of this bug - flash player ver. 23.0.0.162/23.0.0.166. To solve this problem, need downgrade flash player for Chrome to ver 22.0.0.209 (PPAPI plugin).

    1. In Control Panel uninstall adobe flash player ver 23.0.0.162/166

    2. Download ver 22.0.0.209 http://fpdownload.macromedia.com/get/flashplayer/current/licensing/win/install_flash_playe r_22_ppapi.exe​  and install it.

    3. Go to C:\Windows\System32\Macromed\Flash.

    4. Copy two files: pepflashplayer32_22_0_0_209.dll and manifest.json.

    5. Go to C:\Program Files\Google\Chrome\Application\53.0.2785.116\PepperFlash

    6. Past here copied files. Replace manifest.json.

    7. Rename pepflashplayer32_22_0_0_209.dll to pepflashplayer.dll. (ie. replace dll from ver 23.0.0.162 to dll ver. 22.0.0.209)

    8. Go to %USERPROFILE%\AppData\Local\Google\Chrome\User Data\PepperFlash\23.0.0.166

    9. Repeat step 6 and 7

    Participant
    September 19, 2016

    Thanks Ivant, but I'm on a Mac. I tried downgrading Flash, but was unsuccessful. Besides Firefox keeps complaining about the outdated flash version.

    ivant43769692
    Participant
    September 19, 2016

    As far as I know there is Сhrome for Mac. Maybe you should try it to run your videos.

    As you can see Windows Chrome does not allow downgrade flash plugin easily. In fact, I "cheated" Chrome by direct manipulation of the dll files. Now my Chrome thinks that his PPAPI plugin (ie. flash player) is version 23.0.0.166. In chrome://plugin is displayed

    "Adobe Flash Player - Version: 23.0.0.166".

    And therefore Chrome don't complain about the outdated flash version.But actually Chrome works with version 22.0.0.209 and everything is fine.

    I have Windows and I don't know how to do it on Mac OS.