The standard viewer pops up an Adobe Flash Player dialog:

"An ActionScript error has occurred" error message.


"Error #2044: Unhandled AsyncErrorEvent:. text=Error #2095: was unable to invoke callback... "



On Windows 8.1 and Server 2012 R2 the solution is to uninstall Microsoft Security Update 3087916



Known issues with this security update

  • After you install this security update on a computer that is running Windows 8.1 or Windows Server 2012 R2, you may receive an error message that resembles any of the following:
    Adobe Flash Player
    An ActionScript error has occurred.

    Microsoft is researching this problem and will post more information in this article when the information becomes available.