What does HRESULT 0xC00D138B (NS_E_NAMESPACE_WRONG_TYPE) mean?

 
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NS_E_NAMESPACE_WRONG_PERSIST NS_E_NAMESPACE_NODE_CONFLICT

NS_E_NAMESPACE_WRONG_TYPE

What the server is validating

This result (0xC00D138B) marks an existing node is being assigned a value with a different data type. The most useful interpretation starts with the Windows Media Services object that returned the HRESULT.

Smallest useful experiment

  1. Capture 0xC00D138B, this result, the exact API/administrative action and the first failure timestamp.
  2. Preserve node path, stored type, requested type, caller component and serialized value length.
  3. Perform one isolated experiment: read the existing type and write a value of that type, or deliberately replace the node in a controlled configuration migration.

Repeat the test with a newly resolved server object; a stale COM pointer can make a correct configuration appear unchanged.

Code-specific failure anatomy

A representative occurrence is when an existing node is being assigned a value with a different data type. Capture node path, stored type, requested type, caller component and serialized value length together with the object instance and the exact administrative or protocol request.

For a useful negative control, read the existing type and write a value of that type, or deliberately replace the node in a controlled configuration migration.

The tempting but misleading response is stringifying every value; the consumer may require the original numeric, Boolean or interface type. That action does not test the distinction that matters here: wrong security rejects a security classification mismatch rather than a value-type mismatch.

Evidence that separates this code

Controlled comparisonUse a known-good object of the same type and vary only the precondition described as “an existing node is being assigned a value with a different data type”.

Changes that do not establish the cause

  • stringifying every value; the consumer may require the original numeric, Boolean or interface type.
  • a successful ping or local file open is not sufficient proof: the failing service account and Windows Media Services object must perform the same operation.

Related codes are different

Primary distinction: wrong security rejects a security classification mismatch rather than a value-type mismatch.

Nearby resultDifferent condition
NS_E_NAMESPACE_NODE_CONFLICTthe operation targets the protected root node or another structurally non-removable node.
NS_E_NAMESPACE_WRONG_PERSISTa persistent child is being created beneath a transient parent.
NS_E_NAMESPACE_NODE_NOT_FOUNDthe requested configuration node is absent in the active namespace generation.

Technical references


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