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INET_E_UNKNOWN_PROTOCOL
INET_E_UNKNOWN_PROTOCOL is a URL Moniker HRESULT. It means that no protocol handler recognized the URL scheme or the requested scheme is not supported in the current Windows configuration.
What to check for INET_E_UNKNOWN_PROTOCOL
- Validate the URL scheme and make sure it is spelled correctly and registered for the intended handler.
- Use a protocol supported by the application and its deployment environment.
- Investigate handler registration or policy restrictions if a normally supported scheme is unavailable.
Diagnostic interpretation
This result has the HRESULT value 0x800C000D. AllStat records the condition as “The specified protocol is unknown.”.
Evidence to capture
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the inet / unknown / protocol operation.
- compare the failing machine with a working one at the same configuration boundary: component version, policy, registration, identity, and target resource.
Retry and recovery
” has changed.
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