Knowledge

ERROR_MUI_INVALID_RC_CONFIG - 15102 (0x3AFE)

The RC Manifest is corrupted with garbage data or unsupported version or missing required item.

Updated: Feb 21, 2026

Technical Background

ERROR_MUI_INVALID_RC_CONFIG is a specific error code in the Windows operating system that indicates an issue with the Resource Compiler (RC) manifest. This error typically arises when there are problems with the RC manifest file, such as corruption, unsupported versioning, or missing required items.

Error Details

The error ERROR_MUI_INVALID_RC_CONFIG is returned by various Windows APIs and functions that deal with resource files and manifests. It signifies that the system encountered an invalid or corrupted RC manifest during a specific operation. The RC manifest is used to store metadata about resources, such as strings, bitmaps, and other localized data.

Common Causes

  • Corrupted Data: The RC manifest file may be damaged due to various reasons, including disk errors, software conflicts, or improper handling of the file during installation or updates.
  • Unsupported Versioning: The version of the RC manifest is not supported by the current system or application. This can occur if there are compatibility issues between different versions of Windows or applications that rely on specific manifest formats.
  • Missing Required Items: Essential components required for the proper functioning of the RC manifest might be missing, leading to an invalid configuration.

Real-World Context

This error is commonly encountered in scenarios where localized resources need to be accessed or updated. For instance, when a user attempts to install software that requires localization support, or during system updates that involve resource files.

Is This Error Critical?

The severity of this error can vary depending on the context. In some cases, it might only affect specific applications or localized features, while in others, it could impact the overall functionality of the system.

How to Diagnose

  1. Review Operation Context: Ensure that the operation being performed is appropriate for the current environment and version of Windows.
  2. Validate Parameters: Check if all parameters passed to the function or API are valid and correctly formatted.
  3. Confirm Object Types: Verify that the RC manifest file is a valid resource manifest and not corrupted.
  4. Verify Input Data: Ensure that the data within the RC manifest is correct and complete, without any missing or invalid entries.

How to Resolve

  1. Correct Parameter Usage: Double-check all parameters used in the function calls to ensure they are correctly formatted and valid.
  2. Adjust Operation Context: If the operation context is incorrect, adjust it to match the requirements of the API or application.
  3. Restore Data: If corruption is suspected, attempt to restore the RC manifest file from a backup or reinstall the software that uses it.
  4. Retry Operation with Valid Inputs: Perform the operation again using valid inputs and ensure all prerequisites are met.

Developer Notes

  • Ensure that any custom resource manifests used in applications are compatible with the target Windows version.
  • Regularly validate and update RC manifest files to prevent corruption issues.
  • Use error handling mechanisms to gracefully handle ERROR_MUI_INVALID_RC_CONFIG and provide user-friendly feedback or fallback options.

Related Errors

  • ERROR_FILE_NOT_FOUND: Indicates that a required file is missing, which might be part of the corrupted manifest.
  • ERROR_BAD_FORMAT: Suggests issues with the format of the RC manifest, possibly related to versioning problems.

FAQ

Q: What does ERROR_MUI_INVALID_RC_CONFIG mean?

A: It indicates that there is an issue with the Resource Compiler (RC) manifest, such as corruption or unsupported versioning.

Q: How can I prevent this error from occurring?

A: Regularly validate and update RC manifests to ensure they are compatible with the target environment. Use backup mechanisms to restore corrupted files if necessary.

Q: Can this error affect system stability?

A: In most cases, it is not critical but may impact specific applications or localized features. Ensure proper validation and handling of resource manifests to mitigate risks.

Summary

ERROR_MUI_INVALID_RC_CONFIG is a specific error code that indicates issues with the RC manifest in Windows. It can arise due to corruption, unsupported versioning, or missing required items. By understanding its causes and implementing appropriate diagnostic and resolution strategies, developers can ensure smooth operation of applications and localized features.