The simplest use of 32-bit memory is to store data that is used exclusively by USE16 code segments. In this case, the application does not require a dedicated helper segment because it contains no USE32 code segments. Instead, each of its code segments performs the necessary tasks of allocating, reallocating, and freeing the 32-bit memory. If data from the 32-bit memory is to be passed to Windows functions or other 16-bit functions, the application calls the Global16PointerAlloc function so that the application's USE16 code segment can perform the aliasing of 32-bit pointers to the 16-bit pointers.