Error Dll Might Be Incompatible 687 (0x2AF): How to Fix it

Updating the application or using the Compatibility Mode can help

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Sometimes when trying to run certain software you might get ERROR_DLL_MIGHT_BE_INCOMPATIBLE. This will prevent the software from running, but there are ways to fix this issue.

How can I fix ERROR_DLL_MIGHT_BE_INCOMPATIBLE?

Before we try anything else, we suggest you update the application to the latest version. This will help fix any compatibility issues.

1. Try running the application in Compatibility Mode

  1. Locate the application that is giving you the error.
  2. Right-click it and choose Properties.
    properties context menu
  3. Next, navigate to the Compatibility tab, check Run this program in Compatibility Mode for and select an older version of Windows.
    run program in compatibility mode
  4. Save changes and check if this helps.

2. Adjust the security policies

  1. Press Windows key + R and enter gpedit.msc.
    gpedit.msc and click OK to open the Group Policy Editor. - Can’t Turn Off Real-Time Protection on Windows 11
  2. Next, navigate to Computer Configuration and select Administrative Templates.
  3. Choose System and then Mitigation Options.
    administrative templates
  4. Adjust the policies related to executable model security.

3.  Perform a clean boot

  1. Press Windows key + R and type msconfig.
    msconfig
  2. Navigate to the Services tab. Check Hide all Microsoft services and then click on Disable all.
    hide microsoft services and disable all
  3. Save changes, but don’t restart your PC yet.
  4. Open Task Manager. You can do that with Ctrl + Shift + Esc shortcut.
  5. Go to the Startup tab and disable all applications.
    startup apps
  6. Restart your PC.

Check if the problem still appears. If it does, it means that one of the applications or services was causing it. You can pinpoint the cause by enabling services and apps in groups and trying to replicate the problem.

4. Other tips to try

  1. In the message, try replacing %hs with the actual module and identify the module that is being loaded and the alternative module suggested by the error.
  2. Double-check if the application fully supports your OS version.
  3. If possible, replace the insecure module with a different one.
  4. Use Dependency Walker or a similar tool and check the model’s dependencies. If there are any issues with dependencies, resolve them.
  5. If possible, try running the application in legacy or insecure mode.

As you can see ERROR_DLL_MIGHT_BE_INCOMPATIBLE can sometimes be resolved by a quick update or by adjusting your policies.

We covered a similar error not that long ago, and you can learn more about it in our ERROR_DLL_MIGHT_BE_INSECURE guide. Our ERROR_INVALID_IMAGE_HASH article can also provide you with useful information, so don’t miss it.

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