INT 2F - WinDOS v2.11 - SET HISTORY SEGMENT                                     
	AX = AF10h
	BX = segment of new buffer for input history
Return: nothing
Note:	the buffer must have been allocated with INT 21/AH=48h
SeeAlso: AX=AF00h"WinDOS",AX=AF0Fh"WinDOS"