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FWP_E_INVALID_FLAGS
FWP_E_INVALID_FLAGS indicates that a flags field contains unsupported bits or an invalid combination of otherwise valid flags.
What to check for FWP_E_INVALID_FLAGS
- Start from zero and set only flags documented for the exact structure and API call.
- Do not copy flags between related WFP structures; their bit definitions are not interchangeable.
- Check OS-version support before enabling a flag that was added after the oldest supported target.
Diagnostic interpretation of FWP_E_INVALID_FLAGS
FWP_E_INVALID_FLAGS has the HRESULT value 0x8032001E. AllStat records the condition as “The flags field contains an invalid value.”. For FWP_E_INVALID_FLAGS, in practice, interpret that wording at the boundary owned by Windows Filtering Platform or IPsec policy state, rather than treating the value as a generic Windows message.
Evidence to capture for FWP_E_INVALID_FLAGS
- Record the exact COM method or Windows API, its input object, the calling thread, and the full 0x8032001E 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 FWP_E_INVALID_FLAGS or the fwp / flags operation.
- Preserve the first failure in the call chain; a later HRESULT can describe cleanup rather than the original fwp / flags condition.
Retry and recovery for FWP_E_INVALID_FLAGS
Retry FWP_E_INVALID_FLAGS only when the owning API documents a transient state or after the condition described as “The flags field contains an invalid value.” has changed. For FWP_E_INVALID_FLAGS, 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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