| Min version | Vista SP1 |
|---|---|
| Max version | Vista SP2 |
| x64 offset offset:bitpos | Field Name |
| 0x0000 | unsigned long Signature |
| 0x0004 | union _WHEA_ERROR_PACKET_FLAGS Flags |
| 0x0008 | unsigned long Size |
| 0x000C | unsigned long RawDataLength |
| 0x0010 | uint64_t Reserved1 |
| 0x0018 | uint64_t Context |
| 0x0020 | enum _WHEA_ERROR_TYPE ErrorType |
| 0x0024 | enum _WHEA_ERROR_SEVERITY ErrorSeverity |
| 0x0028 | unsigned long ErrorSourceId |
| 0x002C | enum _WHEA_ERROR_SOURCE_TYPE ErrorSourceType |
| 0x0030 | unsigned long Reserved2 |
| 0x0034 | unsigned long Version |
| 0x0038 | uint64_t Cpu |
| 0x0040 | union <unnamed-tag> u |
| 0x0110 | enum _WHEA_RAW_DATA_FORMAT RawDataFormat |
| 0x0114 | unsigned long RawDataOffset |
| 0x0118 | uint8_t[1] RawData |