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Error: Code 2044 - Unhandled IOErrorEvent. The error is caused by an error associated with permissions/security violations. For security reasons, Flash player does not allow a movie from one domain to reference, modify, or ready properties on another domain.


How to fix the Runtime Code 2044 Unhandled IOErrorEvent

This article features error number Code 2044, commonly known as Unhandled IOErrorEvent described as Unhandled IOErrorEvent. The error is caused by an error associated with permissions/security violations. For security reasons, Flash player does not allow a movie from one domain to reference, modify, or ready properties on another domain.


About Runtime Code 2044

Runtime Code 2044 happens when Adobe Flash Player fails or crashes whilst it's running, hence its name. It doesn't necessarily mean that the code was corrupt in some way, but just that it did not work during its run-time. This kind of error will appear as an annoying notification on your screen unless handled and corrected. Here are symptoms, causes and ways to troubleshoot the problem.


Definitions (Beta)

Here we list some definitions for the words contained in your error, in an attempt to help you understand your problem. This is a work in progress, so sometimes we might define the word incorrectly, so feel free to skip this section!

  • Flash - For questions on Adobe's cross-platform multimedia runtime used to embed animations, video, and interactive applications into web pages
  • Movie - Questions regarding movie data: read, write, compress, decode, transcode, and process
  • Permissions - Permissions define the operations that authenticated users are allowed to perform on file systems, databases and other computer systems.
  • Player - DO NOT USE: this tag is ambiguous and is in the process of being cleaned up and deleted.
  • Properties - A property, in some object-oriented programming languages, is a special sort of class member, intermediate between a field or data member and a method
  • Ready - a HTML DOM JS function indicating the document may be manipulated
  • Reference - A reference is a value that enables a program to indirectly access a particular datum, such as a variable or a record, in the computer's memory or in some other storage device.
  • Security - Topics relating to application security and attacks against software
  • Unhandled - tag used for unhandled error or Exception thrown by code
  • Flash player - For questions on Adobe's cross-platform multimedia runtime used to embed animations, video, and interactive applications into web pages
  • Movie - Video is an electronic medium for the recording, copying, and broadcasting of moving visual images
  • Domain - Use this tag for programming questions related to writing code that interacts with the Domain Name System DNS; for example, writing code that uses gethostbyname

Symptoms of Code 2044 - Unhandled IOErrorEvent

Runtime errors happen without warning. The error message can come up the screen anytime Adobe Flash Player is run. In fact, the error message or some other dialogue box can come up again and again if not addressed early on.

There may be instances of files deletion or new files appearing. Though this symptom is largely due to virus infection, it can be attributed as a symptom for runtime error, as virus infection is one of the causes for runtime error. User may also experience a sudden drop in internet connection speed, yet again, this is not always the case.


Fix Unhandled IOErrorEvent (Error Code 2044)
(For illustrative purposes only)



Causes of Unhandled IOErrorEvent - Code 2044

During software design, programmers code anticipating the occurrence of errors. However, there are no perfect designs, as errors can be expected even with the best program design. Glitches can happen during runtime if a certain error is not experienced and addressed during design and testing.

Runtime errors are generally caused by incompatible programs running at the same time. It may also occur because of memory problem, a bad graphics driver or virus infection. Whatever the case may be, the problem must be resolved immediately to avoid further problems. Here are ways to remedy the error.


Repair Methods

Runtime errors may be annoying and persistent, but it is not totally hopeless, repairs are available. Here are ways to do it.

If a repair method works for you, please click the upvote button to the left of the answer, this will let other users know which repair method is currently working the best.

Please note: Neither ErrorVault.com nor it's writers claim responsibility for the results of the actions taken from employing any of the repair methods listed on this page - you complete these steps at your own risk.

When you get a runtime error, keep in mind that it is happening due to programs that are conflicting with each other. The first thing you can do to resolve the problem is to stop these conflicting programs.
  • Open Task Manager by clicking Ctrl-Alt-Del at the same time. This will let you see the list of programs currently running.
  • Go to the Processes tab and stop the programs one by one by highlighting each program and clicking the End Process buttom.
  • You will need to observe if the error message will reoccur each time you stop a process.
  • Once you get to identify which program is causing the error, you may go ahead with the next troubleshooting step, reinstalling the application.
Using Control Panel
  • For Windows 7, click the Start Button, then click Control panel, then Uninstall a program
  • For Windows 8, click the Start Button, then scroll down and click More Settings, then click Control panel > Uninstall a program.
  • For Windows 10, just type Control Panel on the search box and click the result, then click Uninstall a program
  • Once inside Programs and Features, click the problem program and click Update or Uninstall.
  • If you chose to update, then you will just need to follow the prompt to complete the process, however if you chose to Uninstall, you will follow the prompt to uninstall and then re-download or use the application's installation disk to reinstall the program.
Using Other Methods
  • For Windows 7, you may find the list of all installed programs when you click Start and scroll your mouse over the list that appear on the tab. You may see on that list utility for uninstalling the program. You may go ahead and uninstall using utilities available in this tab.
  • For Windows 10, you may click Start, then Settings, then choose Apps.
  • Scroll down to see the list of Apps and features installed in your computer.
  • Click the Program which is causing the runtime error, then you may choose to uninstall or click Advanced options to reset the application.
Virus infection causing runtime error on your computer must immediately be prevented, quarantined or deleted. Make sure you update your virus program and run a thorough scan of the computer or, run Windows update so you can get the latest virus definition and fix.
You might be getting the error because of an update, like the MS Visual C++ package which might not be installed properly or completely. What you can do then is to uninstall the current package and install a fresh copy.
  • Uninstall the package by going to Programs and Features, find and highlight the Microsoft Visual C++ Redistributable Package.
  • Click Uninstall on top of the list, and when it is done, reboot your computer.
  • Download the latest redistributable package from Microsoft then install it.
You might also be experiencing runtime error because of a very low free space on your computer.
  • You should consider backing up your files and freeing up space on your hard drive
  • You can also clear your cache and reboot your computer
  • You can also run Disk Cleanup, open your explorer window and right click your main directory (this is usually C: )
  • Click Properties and then click Disk Cleanup
If the error is related to a bad graphics driver, then you may do the following:
  • Open your Device Manager, locate the graphics driver
  • Right click the video card driver then click uninstall, then restart your computer
If the error you are getting is related to the Internet Explorer, you may do the following:
  1. Reset your browser.
    • For Windows 7, you may click Start, go to Control Panel, then click Internet Options on the left side. Then you can click Advanced tab then click the Reset button.
    • For Windows 8 and 10, you may click search and type Internet Options, then go to Advanced tab and click Reset.
  2. Disable script debugging and error notifications.
    • On the same Internet Options window, you may go to Advanced tab and look for Disable script debugging
    • Put a check mark on the radio button
    • At the same time, uncheck the "Display a Notification about every Script Error" item and then click Apply and OK, then reboot your computer.
If these quick fixes do not work, you can always backup files and run repair reinstall on your computer. However, you can do that later when the solutions listed here did not do the job.
Other languages:

Wie beheben Fehler 2044 (Nicht behandeltes IOErrorEvent) - Nicht behandeltes IOErrorEvent. Der Fehler wird durch einen Fehler im Zusammenhang mit Berechtigungen/Sicherheitsverletzungen verursacht. Aus Sicherheitsgründen lässt Flash Player nicht zu, dass ein Film aus einer Domain auf Eigenschaften einer anderen Domain verweist, diese ändert oder bereitstellt.
Come fissare Errore 2044 (IOErrorEvent non gestito) - IOErrorEvent non gestito. L'errore è causato da un errore associato alle autorizzazioni/violazioni della sicurezza. Per motivi di sicurezza, Flash Player non consente a un filmato di un dominio di fare riferimento, modificare o predisporre le proprietà su un altro dominio.
Hoe maak je Fout 2044 (Onverwerkte IOE-foutgebeurtenis) - Onverwerkte IOErrorEvent. De fout wordt veroorzaakt door een fout die verband houdt met machtigingen/beveiligingsschendingen. Om veiligheidsredenen staat Flash Player niet toe dat een film van het ene domein naar eigenschappen op een ander domein verwijst, wijzigt of gereed is.
Comment réparer Erreur 2044 (IOErrorEvent non géré) - IOErrorEvent non géré. L'erreur est causée par une erreur associée aux autorisations/violations de sécurité. Pour des raisons de sécurité, Flash Player n'autorise pas une animation d'un domaine à référencer, modifier ou préparer des propriétés sur un autre domaine.
어떻게 고치는 지 오류 2044 (처리되지 않은 IOErrorEvent) - 처리되지 않은 IOErrorEvent. 이 오류는 권한/보안 위반과 관련된 오류로 인해 발생합니다. 보안상의 이유로 Flash Player는 한 도메인의 동영상이 다른 도메인의 속성을 참조, 수정 또는 준비하는 것을 허용하지 않습니다.
Como corrigir o Erro 2044 (IOErrorEvent não tratado) - IOErrorEvent não tratado. O erro é causado por um erro associado a violações de permissões / segurança. Por motivos de segurança, o Flash Player não permite que um filme de um domínio faça referência, modifique ou prepare propriedades em outro domínio.
Hur man åtgärdar Fel 2044 (Ohanterad IOErrorEvent) - Unhandled IOErrorEvent. Felet orsakas av ett fel i samband med behörigheter/säkerhetsöverträdelser. Av säkerhetsskäl tillåter inte Flash Player att en film från en domän refererar till, ändrar eller är klar för egenskaper på en annan domän.
Как исправить Ошибка 2044 (Необработанное событие IOErrorEvent) - Необработанное событие IOErrorEvent. Ошибка вызвана ошибкой, связанной с нарушениями разрешений / безопасности. По соображениям безопасности Flash Player не позволяет фильму из одного домена ссылаться, изменять или готовить свойства в другом домене.
Jak naprawić Błąd 2044 (Nieobsłużone zdarzenie IOErrorEvent) - Nieobsłużone zdarzenie IOErrorEvent. Błąd jest spowodowany błędem związanym z uprawnieniami/naruszeniami bezpieczeństwa. Ze względów bezpieczeństwa Flash Player nie zezwala filmowi z jednej domeny na odwoływanie się, modyfikowanie lub przygotowywanie właściwości w innej domenie.
Cómo arreglar Error 2044 (IOErrorEvent no controlado) - IOErrorEvent no controlado. El error es causado por un error asociado con permisos / violaciones de seguridad. Por razones de seguridad, Flash Player no permite que una película de un dominio haga referencia, modifique o prepare propiedades en otro dominio.




The Author About The Author: Phil Hart has been a Microsoft Community Contributor since 2010. With a current point score over 100,000, they've contributed more than 3000 answers in the Microsoft Support forums and have created almost 200 new help articles in the Technet Wiki.


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