| Mlist | Description |
| HeapCreate | Creates a private heap with an initial block of committed pages and an additional block of reserved pages into which the heap can grow. |
| HeapDestroy | Decommits and releases the pages of a private heap. |
| HeapAlloc | Allocates a block of memory from a private heap. |
| HeapFree | Frees a block of memory allocated by HeapAlloc. |
| HeapSize | Returns the size of a block of memory allocated by HeapAlloc. |