Knowledge

RPC_S_INVALID_VERS_OPTION - 1756 (0x6DC)

The version option is invalid.

Updated: Feb 21, 2026

Technical Meaning

The error code RPC_S_INVALID_VERS_OPTION indicates that a version option passed to an RPC (Remote Procedure Call) function is not valid for the current operation. This typically occurs when there is a mismatch between the expected and provided version options.

Error Details

  • Error Name: RPC_S_INVALID_VERS_OPTION
  • Numeric Code: 1756
  • Hex Code: 0x6DC
  • Short Description: The version option provided is not valid for the current operation.

Usage Context

This error code is commonly encountered in scenarios where an application or service attempts to make a remote procedure call using a version of the RPC protocol that does not match the expected version. It can also occur if the client and server versions are incompatible, leading to a failure in the communication process.

Developer Interpretation

When this error code is returned, it signifies that the application or service must ensure that the correct version option is being used for the specific RPC operation. Developers should verify the version compatibility between the client and server components involved in the RPC call.

Related Errors

  • RPC_S_NO_CONTEXT (1750, 0x6E2): No context exists to complete this operation.
  • RPC_S_CALL_FAILED (1748, 0x6D8): The remote procedure call failed for an unspecified reason.

FAQ

Q: What does the RPC_S_INVALID_VERS_OPTION error mean?

A: It indicates that a version option passed to an RPC function is not valid for the current operation. This typically occurs when there is a mismatch between the expected and provided version options.

Q: How can I resolve this issue?

A: Ensure that the correct version of the RPC protocol is being used by both the client and server components involved in the communication. Verify the compatibility of the versions before making the RPC call.

Summary

The RPC_S_INVALID_VERS_OPTION error code highlights a mismatch between the expected and provided version options for an RPC operation. Developers should ensure that all components are using compatible versions to avoid this issue.