nReason
The reason for the abort. If the source of the abort is PDU_ABORT_SOURCE_USER, the reasons for the abort are not significant. If the source of the abort is PDU_ABORT_SOURCE_PROVIDER, the possible values are:
| Value | Meaning | 
| PDU_ABORT_REASON_UNKNOWN | [0] Unknown | 
| PDU_ABORT_REASON_UNRECOGNIZED | [1] Unrecognized PDU | 
| PDU_ABORT_REASON_UNEXPECTED | [2] Unexpected PDU | 
| PDU_ABORT_REASON_UNRECOGNIZED_PARAM | [4] Unrecognized PDU parameter | 
| PDU_ABORT_REASON_UNEXPECTED_PARAM | [5] Unexpected PDU parameter | 
| PDU_ABORT_REASON_INVALID_PARAM | [6] Invalid PDU parameter value |