Knowledge

DNS_ERROR_INVALID_DATAFILE_NAME - 9652 (0x25B4)

Invalid datafile name for DNS zone.

Updated: Feb 21, 2026

Technical Background

The DNS_ERROR_INVALID_DATAFILE_NAME error, with the numeric code 9652 and hexadecimal representation 0x25B4, indicates an issue related to a zone datafile name in the Domain Name System (DNS) service. This error is specific to operations involving DNS zones.

Error Details

This error typically arises when attempting to manage or modify a DNS zone, where the specified datafile name does not conform to the expected format or naming conventions required by the DNS service.

Common Causes

  • Invalid Name Format: The provided datafile name may contain characters or patterns that are not allowed in a valid DNS zone file name.
  • Incorrect Object Type: The operation might be attempting to apply a parameter intended for a different type of object, such as a directory or file, to a DNS zone.

    Real-World Context

    This error can occur during operations like adding, modifying, or deleting zones through the Windows API. It is crucial to ensure that all parameters and names used in these operations adhere strictly to the naming conventions and requirements set by the DNS service.

    Is This Error Critical?

    The criticality of this error depends on the specific operation being performed. In general, it is not a catastrophic failure but can prevent certain operations from completing successfully.

    How to Diagnose

    To diagnose this issue, follow these steps:

    1. Review Operation Context: Ensure that the context in which the DNS zone management operation is being executed is correct.
    2. Validate Parameters: Verify that all parameters passed to the API function are valid and correctly formatted.
    3. Confirm Object Types: Confirm that the object types involved (e.g., datafile names) match the expected types for the operation.

      How to Resolve

      To resolve this issue, take these steps:

    4. Correct Parameter Usage: Ensure that all parameters used in the API function calls are correctly formatted and adhere to the naming conventions.
    5. Adjust Operation Context: If necessary, adjust the context or environment in which the DNS zone management operations are being performed.

      Developer Notes

      When working with DNS zones through the Windows API, it is essential to validate input data thoroughly and ensure compliance with the required naming conventions. This can prevent such errors from occurring.

      Related Errors

  • DNS_ERROR_ZONE_NAME_COLLISION: Occurs when a zone name already exists.
  • DNS_ERROR_INVALID_ZONE_TYPE: Indicates an invalid zone type was specified.

    FAQ

    Q: What does DNS_ERROR_INVALID_DATAFILE_NAME mean?

    A: This error indicates that the datafile name provided for a DNS zone is not valid according to the naming conventions required by the DNS service.

    Q: How can I prevent this error from occurring?

    A: Ensure that all parameters used in DNS zone management operations are correctly formatted and adhere to the naming conventions specified by the DNS service documentation.

    Summary

    The DNS_ERROR_INVALID_DATAFILE_NAME error is a specific issue related to invalid datafile names for DNS zones. It can be diagnosed by validating input parameters and ensuring compliance with naming conventions, and resolved by correcting parameter usage or adjusting operation context as necessary.