In this post, you’ll learn more about the Error FWP_E_KEY_DICTATION_INVALID_KEYING_MATERIAL – 0x80320040 that is returned when working with the COM-based APIs in Win32
Win32 COM Error
FWP_E_KEY_DICTATION_INVALID_KEYING_MATERIAL – 0x80320040
Win32 COM Error Error Description
A key manager dictated invalid keys