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FWP_E_PROVIDER_CONTEXT_MISMATCH
FWP_E_PROVIDER_CONTEXT_MISMATCH means the code supplied a provider context whose declared type does not match what the operation expects.
What to verify for FWP_E_PROVIDER_CONTEXT_MISMATCH
- Confirm that the provider context was created with the intended WFP context type.
- Keep the context identifier, callout identifier, and filter reference together in one validated policy object.
- Do not infer context compatibility from a provider GUID alone; the context type matters.
Diagnostic discriminator: Check the provider-context type against what the consuming filter/callout operation requires. Matching GUID ownership is insufficient when the context type is wrong, so preserve both identifier and declared context type.
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