HRESULT 0x8032000B (FWP_E_DYNAMIC_SESSION_IN

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The call is not allowed from within a dynamic session.

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FWP_E_IN_USE	FWP_E_WRONG_SESSION

FWP_E_DYNAMIC_SESSION_IN_PROGRESS

FWP_E_DYNAMIC_SESSION_IN_PROGRESS means that the current WFP call is not permitted from a dynamic session. Dynamic sessions are intentionally short-lived ownership scopes: objects added in one are removed automatically when the session ends, which is useful for crash cleanup but incompatible with some engine-wide or persistent operations.

Understand the session before changing code

Record the flags supplied to FwpmEngineOpen0 and whether the operation changes engine settings, security information, or an object intended to survive the process.
Do not assume that an object’s existence alone makes every management API legal from the same handle.
Separate transient runtime policy from persistent configuration instead of changing session flags at random.

Correct response

Open a suitable non-dynamic session for the operation when persistence or engine-wide administration is required. For ordinary product filters that should disappear if the process crashes, retain the dynamic session design and move only the prohibited operation to the appropriate management path.

Microsoft: WFP error codes · Microsoft: dynamic WFP sessions · Microsoft: operations unavailable in dynamic sessions

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