| Min version | Vista SP1 | 8 Pre RTM | 8 | 8.1 |
|---|---|---|---|---|
| Max version | 7 SP1 | 10 TH2 | ||
| x64 offset offset:bitpos | Field Name | |||
| 0x0000 | struct _SINGLE_LIST_ENTRY SFreeListEntry | |||
| 0x0000 | struct _HEAP_SUBSEGMENT * SubSegment | |||
| 0x0008 | void * Reserved | |||
| 0x0010 | uint64_t SizeIndex | unsigned long SizeIndexAndPadding | ||
| 0x0010 | uint8_t SizeIndex | |||
| 0x0011 | uint8_t GuardPagePresent | |||
| 0x0012 | uint16_t PaddingBytes | |||
| 0x0014 | unsigned long Signature | |||
| 0x0018 | uint64_t Signature | uint16_t FirstAllocationOffset | struct _HEAP_USERDATA_OFFSETS EncodedOffsets | |
| 0x001A | uint16_t BlockStride | |||
| 0x0020 | uint16_t FirstAllocationOffset | struct _RTL_BITMAP_EX BusyBitmap | ||
| 0x0022 | uint16_t BlockStride | |||
| 0x0028 | struct _RTL_BITMAP_EX BusyBitmap | |||
| 0x0030 | uint64_t[1] BitmapData | |||
| 0x0038 | uint64_t[1] BitmapData | |||