Thursday, February 18, 2021

Failed To Open Mpic Config File Error - [Fixed]

The earlier version of Windows apps may run on the latest version of the OS. The problem is that these old apps may not work as expected. You can experience some glitches and it can also throw an error.

I have noticed this error in desktop trading platforms like 'NEST' and 'NOW' applications. These desktop applications were developed for previous versions of Windows and there there were no further updates. 

Since the applications were made for Windows XP, it triggers compatibility issues in the latest version of Windows OS. The issue can be seen in Windows 7, 8, and 10 when you open some of the older versions of desktop applications.

Failed to open mpic config file

Failed To Open Mpic Config File

When this error message occurs, you need to click on the 'OK' button several times to close the pop-up. This is an annoying message when the trader jumps into trade immediately after logging in. In this post, we will see two ways to fix the issue.

Run as Administrator

Providing administrator rights is a simple method to open the old Windows applications without glitches or errors. What you need to do is to right-click on the application icon and click "Run as administrator".

Note: This task has to be performed each time when you want to open the application.

Configure Compatibility Settings

Did you know that you can run the older apps on Windows as administrator by default without touching the first method? If each time you don't want to use the first method, try adjusting the compatibility settings for the application. Let's begin.

  • Right-click on the application icon shortcut.
  • Click Open file location.

open file location

  • Find your appname.exe application and right-click on it.
  • Open Properties.


  • Navigate to the Compatibility tab.

windows compatibility settings

  • Click Change settings for all users. (You might be prompted for an admin password)

windows compatibility settings for all users

  • On the new dialog box, check Run this program in compatibility mode for: and choose the version of Windows you're currently using.
  • Next is to check to Run this program as an administrator.
  • Click Apply and OK.
If you do not have multiple user logins on your computer, you ignore the option of changing the settings for all users. You can directly check the compatibility mode for the current OS and permission to run the app as an administrator. Finally, apply the settings to complete the changes.

You can now run the application without seeing the error message.


In the new version of the desktop application on Windows, you won't face this kind of situation. However, if your application has a stable older version, there is nothing wrong with using the version on the newer Windows OS. Until the application is supported by your Windows OS, you can continue to use it.