FreeExpansionMem( startSlot, numSlots )
      
     
  
    (Not typically called by user code)
    This function allocates numslots of expansion space (each slot is E_SLOTSIZE bytes).  It is the inverse function of 
AllocExpansionMem().
  
    
      - startSlot
- 
        the slot number that was allocated, or -1 for error.
 
 
- numSlots
- 
        the number of slots to be freed.
 
 
    EXCEPTIONS
      
        If the caller tries to free a slot that is already in the free list, FreeExpansionMem will Alert() (e.g. crash the system).