What does HRESULT 0xC00D00CB (NS_E_ASSERT) mean?

 
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NS_E_INSUFFICIENT_DATA NS_E_BAD_ADAPTER_NAME

NS_E_ASSERT

NS_E_ASSERT0xC00D00CB

Diagnosing NS_E_ASSERT

NS_E_ASSERT identifies this Windows Media Services boundary: An internal assertion failed; record the assertion name, source file, and line number.

Why this boundary matters

This HRESULT is controlled by a concrete server object, value or administrative precondition. Preserve the exact supplied identity/value and its configuration source, then verify the owning API contract before changing broader Windows Media Services state.

Evidence to collect

FieldWhat to preserve
ValueExact supplied administrative value or object name that the server rejected.
SourceConfiguration file, API request or persisted setting that supplied the value.
Expected contractAccepted range, required object or known-good value from the same server generation.
First resultEarliest component validation result before a broader administrative error replaces it.

Decision rule

Validate the rejected value at the owning API boundary and change only that precondition before broad service or machine configuration.

Focused test

Capture the assertion text, source location, component event and first lower-level error from the same request; do not restart before preserving that evidence.

Verification

Repeat the same administrative or API operation after changing only the rejected value, missing object or precondition. Preserve any new HRESULT separately instead of treating it as the same configuration failure.

Technical references

The useful success criterion is not merely the disappearance of NS_E_ASSERT. Confirm that the same server action completes and that the expected content or object remains available through the next pipeline stage.


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