HRESULT 0x80072EEB (WININET_E_OPTION_NOT

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The WinINet option cannot be set on this handle or at this time.

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WININET_E_BAD_OPTION_LENGTH	WININET_E_SHUTDOWN

WININET_E_OPTION_NOT_SETTABLE

WININET_E_OPTION_NOT_SETTABLE is a WinINet HRESULT. It means that the requested option is read-only, is not applicable to the selected handle, or can be configured only before the relevant connection or request is created.

What to check for WININET_E_OPTION_NOT_SETTABLE

Determine whether the option is intended to be queried rather than changed.
Apply connection-wide settings to the appropriate parent handle before creating dependent requests.
Do not ignore the failure and assume a security, proxy or timeout setting took effect.

Microsoft: WinINet overview

Diagnostic interpretation of WININET_E_OPTION_NOT_SETTABLE

WININET_E_OPTION_NOT_SETTABLE has the HRESULT value 0x80072EEB. AllStat records the condition as “The option value cannot be set”. For WININET_E_OPTION_NOT_SETTABLE, 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 WININET_E_OPTION_NOT_SETTABLE

Record the exact COM method or Windows API, its input object, the calling thread, and the full 0x80072EEB 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 WININET_E_OPTION_NOT_SETTABLE or the wininet / option / settable operation.
Reproduce WININET_E_OPTION_NOT_SETTABLE with the smallest valid input and note whether the result changes with identity, architecture, service state, or target object.

Retry and recovery for WININET_E_OPTION_NOT_SETTABLE

Retry WININET_E_OPTION_NOT_SETTABLE only when the owning API documents a transient state or after the condition described as “The option value cannot be set” has changed. For WININET_E_OPTION_NOT_SETTABLE, 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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