| Min version | 10 Pre RTM | 10 |
|---|---|---|
| Max version | 10 TH2 | |
| x64 offset offset:bitpos | Field Name | |
| 0x0000:0x00 | unsigned long MemoryCost | union _HEAP_VS_CHUNK_HEADER_SIZE Sizes |
| 0x0000 | uint16_t KeyUShort | |
| 0x0000 | unsigned long KeyULong | |
| 0x0000 | uint64_t HeaderBits | |
| 0x0000:0x10 | unsigned long UnsafeSize | |
| 0x0004:0x00 | unsigned long UnsafePrevSize | |
| 0x0004:0x10 | unsigned long Allocated | |
| 0x0008:0x00 | unsigned long SegmentPageOffset | unsigned long EncodedSegmentPageOffset |
| 0x0008 | unsigned long AllocatedChunkBits | |
| 0x0008:0x08 | unsigned long UnusedBytes | |
| 0x0008:0x09 | unsigned long SkipDuringWalk | |
| 0x0008:0x0A | unsigned long Spare | |