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WS_E_INVALID_ENDPOINT_URL
WS_E_INVALID_ENDPOINT_URL is a Windows Web Services API HRESULT. It means that the endpoint URL cannot be parsed or is not valid for the selected Windows Web Services transport and binding.
What to check for WS_E_INVALID_ENDPOINT_URL
- Validate the scheme, host, port, path, percent encoding and required endpoint format.
- Check configuration interpolation and avoid unsafe URL string concatenation.
- Compare the final runtime URL with the endpoint address published by the service.
Diagnostic interpretation of WS_E_INVALID_ENDPOINT_URL
WS_E_INVALID_ENDPOINT_URL has the HRESULT value 0x803D0020. AllStat records the condition as “The endpoint address URL is invalid.”. For WS_E_INVALID_ENDPOINT_URL, in practice, interpret that wording at the boundary owned by the Windows component or COM interface that returned the HRESULT, rather than treating the value as a generic Windows message.
Evidence to capture for WS_E_INVALID_ENDPOINT_URL
- Record the exact COM method or Windows API, its input object, the calling thread, and the full 0x803D0020 value before a wrapper converts it to an exception or Boolean result.
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions WS_E_INVALID_ENDPOINT_URL or the ws / endpoint / url operation.
- Reproduce WS_E_INVALID_ENDPOINT_URL with the smallest valid input and note whether the result changes with identity, architecture, service state, or target object.
Retry and recovery for WS_E_INVALID_ENDPOINT_URL
Retry WS_E_INVALID_ENDPOINT_URL only when the owning API documents a transient state or after the condition described as “The endpoint address URL is invalid.” has changed. For WS_E_INVALID_ENDPOINT_URL, configuration, policy, format, and authorization failures normally require correction first; an immediate loop can hide the original call site and add secondary errors.
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