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What does NTSTATUS 0xC00A0039 (STATUS_TS_INCOMPATIBLE_SESSIONS) mean?

 
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STATUS_TS_INCOMPATIBLE_SESSIONS

The target session is not compatible with the current session

Remote Desktop Services keeps separate interactive sessions, each with its own state, window station, user context and namespace boundaries. This status means the operation was valid in concept but not between the specific source and target sessions.

The cause is often session isolation, wrong target session ID, service running in session 0, or code that assumes the console and remote sessions are interchangeable.

What to inspect

  • Confirm the caller session ID and target session ID using WTS APIs or Event Viewer evidence.
  • Check whether the caller is a service in session 0 attempting to manipulate a user session.
  • Validate namespace use for shared objects with Global and Local prefixes.

References


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