ERROR_INVALID_PLUGPLAY_DEVICE_PATH (620) - Windows Error Code Reference

Technical Background

The ERROR_INVALID_PLUGPLAY_DEVICE_PATH error, with the numeric code 620 or hexadecimal value 0x26C, indicates that a specified Plug and Play device path in the Windows registry is invalid. This error typically occurs during operations involving device enumeration or configuration.

Error Details

This specific error type is related to parameter validation within the Windows operating system. It suggests that an application or service attempted to access a device path that does not conform to expected formats or structures, leading to this error being generated by the system.

Common Causes

Invalid Parameter Values: The provided device path may contain incorrect characters or syntax that do not adhere to the expected format for Plug and Play devices.
Incorrect Object Type: The operation attempted on a non-device object was treated as if it were a device, leading to an invalid path error.
Exceeding Limits: In rare cases, attempting to access a large number of devices or paths that exceed system-defined limits might trigger this error.

Real-World Context

This error can occur in various scenarios such as:

Device installation and configuration
Driver loading and unloading
System initialization and shutdown processes
Custom applications interacting with the Plug and Play subsystem

Is This Error Critical?

The criticality of this error depends on its context. While it may not cause immediate system instability, it can prevent certain device operations from completing successfully.

How to Diagnose

To diagnose this issue:

Review Operation Context: Ensure that the operation being performed is appropriate for the device type and path provided.
Validate Parameters: Check the format and content of the device path to ensure it matches expected standards.
Confirm Object Types: Verify that the object types involved in the operation are correctly identified as devices or other relevant categories.
Verify Input Data: Ensure that all input data, including paths and identifiers, are correct and complete.
Check Limits or Constraints: Confirm that the system has not reached any operational limits related to device enumeration or path handling.

How to Resolve

To resolve this issue:

Correct Parameter Usage: Ensure that the device path provided is valid and correctly formatted according to Plug and Play standards.
Adjust Operation Context: If the operation context is incorrect, adjust it to match the expected usage scenario for the device type.
Restore Data: In cases where data corruption might be a factor, restore or reconfigure the affected registry entries.
Retry Operation with Valid Inputs: Attempt the operation again using valid and correctly formatted inputs.

Developer Notes

Developers should ensure that all operations involving Plug and Play devices are thoroughly validated to prevent such errors. This includes rigorous testing of device paths and object types, as well as handling potential edge cases where system limits might be approached.

Related Errors

FAQ

Q: What does the ERROR_INVALID_PLUGPLAY_DEVICE_PATH error mean?

A: It indicates that a specified Plug and Play device path in the Windows registry is invalid.

Q: How can I prevent this error from occurring?

A: Ensure that all device paths are correctly formatted and validated before use. Use appropriate validation logic to check for correct object types and paths.

Q: Can this error affect system stability?

A: While it may not cause immediate instability, it can prevent certain operations from completing successfully, which could indirectly impact system performance or functionality.

Summary

The ERROR_INVALID_PLUGPLAY_DEVICE_PATH is a specific error indicating an invalid Plug and Play device path. It requires careful validation of input parameters to ensure successful operation. Developers should pay attention to this error during development and testing phases to maintain robust application behavior.