Knowledge

ERROR_CTX_WINSTATION_NAME_INVALID - 7001 (0x1B59)

The specified session name is invalid.

Updated: Feb 21, 2026

Technical Background

The ERROR_CTX_WINSTATION_NAME_INVALID error code is a specific error that indicates an issue with the session name provided during a Remote Desktop Services (RDS) operation. This error typically occurs when the client or server attempts to establish a connection using an invalid session name, which may not conform to the expected format or naming conventions.

Error Details

  • Error Name: ERROR_CTX_WINSTATION_NAME_INVALID
  • Numeric Code: 7001 (0x1B59)
  • Short Description: The specified session name is invalid.

This error suggests that the session name provided does not meet the requirements for valid RDS session names. It could be due to incorrect formatting, an unsupported character set, or a name that exceeds the allowed length.

Common Causes

  1. Invalid Session Name Format: The session name may contain characters or formats that are not supported by the Remote Desktop Services infrastructure.
  2. Exceeding Length Limits: The session name might be too long to comply with the maximum allowable length for RDS session names.
  3. Unsupported Characters: The session name could include characters that are not permitted in valid session names, such as certain special characters or spaces.
  4. Incorrect Usage Context: The operation may have been attempted outside of a supported context where session names are required.

Real-World Context

This error is commonly encountered when using Remote Desktop Services for managing sessions on Windows systems. It can occur during various operations such as establishing a remote desktop connection, creating or modifying sessions, or terminating sessions.

Is This Error Critical?

The criticality of this error depends on the specific operation being performed and the context in which it occurs. In most cases, it is not a critical failure that would prevent system functionality but may require corrective action to resolve the issue.

How to Diagnose

  1. Review Operation Context: Ensure that the session name is appropriate for the intended operation. Verify if the operation is being performed in an environment where session names are required.
  2. Validate Parameters: Check the format and content of the session name against the expected naming conventions. Ensure that it does not contain unsupported characters or exceed length limits.
  3. Confirm Object Types: Confirm that the object types involved (e.g., sessions, workstations) are correctly identified and managed by the system.
  4. Verify Input Data: Validate any additional input data related to session management, such as user credentials or connection parameters.

How to Resolve

  1. Correct Parameter Usage: Ensure that the session name is formatted correctly according to the naming conventions for Remote Desktop Services sessions.
  2. Adjust Operation Context: If the operation context is incorrect, adjust it to a supported environment where session names are valid and required.
  3. Restore Data: If the issue is due to corrupted or invalid data, restore the correct session name from reliable sources such as configuration files or user input.
  4. Retry Operation with Valid Inputs: After making corrections, retry the operation using the validated session name.

Developer Notes

Developers should ensure that any code interacting with Remote Desktop Services sessions validates and formats session names according to the expected standards. This can help prevent such errors from occurring in production environments.

Related Errors

  • ERROR_CTX_INVALID_SUBSYSTEM: Indicates an invalid subsystem context, which might be related if the operation is being performed outside of a supported RDS environment.
  • ERROR_CTX_WINSTATION_NOT_FOUND: Occurs when the specified session name cannot be found, possibly due to incorrect naming or session state issues.

FAQ

Q: What does the ERROR_CTX_WINSTATION_NAME_INVALID error mean?

A: This error indicates that the session name provided is invalid and does not meet the required format or length constraints for Remote Desktop Services operations.

Q: How can I prevent this error from occurring?

A: Ensure that session names are correctly formatted, do not exceed length limits, and only contain supported characters. Validate input data before performing RDS operations.

Summary

The ERROR_CTX_WINSTATION_NAME_INVALID error code is a specific indication of an invalid session name in Remote Desktop Services operations. It requires validation and correction of the session name to resolve the issue. Developers should ensure that their applications handle session names according to the expected standards to avoid this error.