PVOID MiFindEmptyAddressRange( IN SIZE_T SizeOfRange, IN ULONG_PTR Alignment, IN ULONG QuickCheck ); Routine Description: The function examines the virtual address descriptors to locate an unused range of the specified size and returns the starting address of the range. Arguments: SizeOfRange - Supplies the size in bytes of the range to locate. Alignment - Supplies the alignment for the address. Must be a power of 2 and greater than the page_size. QuickCheck - Supplies a zero if a quick check for free memory after the VadFreeHint exists, non-zero if checking should start at the lowest address. Return Value: Returns the starting address of a suitable range.